Today, I always make mistakes when building projects. I suspect that there is something wrong with the jar package, so I delete all the jar packages and reload them into the Maven warehouse,
Think very good, but made a mistake! POM file error, how to update all useless, delete jar package reload also can’t.
Finally, in the life and death of the occasion, choose the forced refresh, just like, then remember it!
An error occurred when starting Tomcat in Eclipse: the port is already occupied.
This is because when Tomcat is on, eclipse closes abnormally, causing Tomcat to occupy the port all the time.
resolvent
Enter the command in the CMD window–
Netstat – ano | findstr 8080 (8080 refers to the occupied port number)
After the command is executed, you can get the PID of the process that occupies the changed port number
Then enter the command in the CMD window–
Taskkill – PID – F from the last command
ok
Today, I write a java file download program. After it’s finished, everything is normal, but it always throws out java.lang.IllegalStateException Abnormal, although it does not affect the normal use, but it always makes people feel very uncomfortable. There is nothing wrong with checking the code. Finally, I checked a lot of information on the Internet and finally found out the reason.
When we upload or download files, or filter files, we may need to use the output stream of the page.
for example, when we use it in action:
for example, when we use it in action response.reset ();
response.setContentType (”application/ vnd.ms -excel”);
OutputStream os = response.getOutputStream ();
throw an exception: java.lang.IllegalStateException
Cause analysis:
this is a problem in the servlet code generated by the web container out.write (), which is invoked in JSP. response.getOutputStream () conflicts.
that is, the servlet specification states that it cannot be called either response.getOutputStream (), and then call response.getWriter (), no matter which one is called first, an IllegalStateException will be thrown when calling the second one,
Because in JSP, the out variable is generated through the response.getWriter It is used in the program response.getOutputStream , and the out variable is used, so the above error occurs.
solve:
Method 1: add the following two sentences to the JSP file
| <% out.clear (); out = pageContext.pushBody (); %> |
Defects of this method:
many development projects are not caused by JSP front-end, such as freemaker, velocity and so on“ response.getOutputStream () “not in JSP, but in servlet/action
Method 2: in action, do not return to the specific result file, return null
instead
| //return SUCCESS; return null; |
I use eclipse ide to import a correct project. Some XML configuration files and JSP pages report errors. Click in to view the specific errors. XML files report errors in some header files, and JSP functions. But others did not report mistakes.
This is because the files we wrote are not written in strict accordance with the relevant rules of J2EE, but the operation will not make mistakes, as long as we do not let the project configuration select these.
resolvent:
Step 1: Project Explorer (if you don’t have this window, you can select an inverted triangle sign in the eclipse toolbar – & gt; window – & gt; show view – & gt; Project Explorer) – & gt; select the customize view (as shown in Figure 1) – & gt; content tab – & gt; and remove some J2EE and the last option (as shown in Figure 2 – available customization).
Figure 1
Figure 2
Step 2: Eclipse toolbar – & gt; window – & gt; preferences – & gt; validation – & gt; click the “disable all” button – & gt; OK/apply (as shown in the figure)
Step 3: clean the project and rebuild it.
After eclipse Eclispe imports the correct project, XML appears
Original text: http://blog.csdn.net/u013147600/article/details/47102971
Cause of error:
1. The type or size of the two fields do not strictly match. For example, if one of them is int (10), then the foreign key must also be set to int (10), not int (11), and it cannot be tinyint. You can use the show command to view the size of the field, because some query browsers sometimes display int (10) and int (11) as integer. In addition, it is necessary to confirm whether both fields are signed or not, and the two fields must be strictly matched all the time.
2. When an attempt is made to refer to one of the foreign keys, which is not indexed or is not primary key, an index must be created for this foreign key.
3. The name of a foreign key is an existing key value. You should make sure that the foreign key name is unique, or add several characters randomly after the key name to test whether this is the reason.
4. If you want to use foreign key constraints, one or two of the tables representing the MyISAM engine must be InnoDB engine (if both tables are MyISAM engines, this error will not occur at all, but foreign keys will not be generated).
5. It is possible that on delete set null is set, but the related key field is set to not null. You can fix this bug by modifying the property value of cascade or setting the field property to allow null.
6. Make sure your charset and collate options are consistent at the table and field levels.
7. A default value may be set for the foreign key, such as default = 0
8. In this relationship, one of the fields is one of the mixed key values. It does not have its own independent index, so it is necessary to create an independent index for it.
9. Error in alert declaration.
10. The two tables to be joined have different encoding formats.
Refer to Baidu document: https://wenku.baidu.com/view/7a0a1f1b10a6f524ccbf85e6.html
Error in reverse generating entity class from database table using hibernate
14:46:04,104 ERROR org.hibernate.util.XMLHelper - Error parsing XML: XML InputStream(31) The content of element type "hibernate-reverse-engineering" must match "(schema-selection*,type-mapping?,table-filter*,table*)".
14:46:04,107 ERROR org.hibernate.cfg.reveng.OverrideRepository - Could not configure overrides from file: E:\zxworkspace\src\main\resources\reveng.xml
org.hibernate.MappingException: invalid override definition
at org.hibernate.cfg.reveng.OverrideRepository.addInputStream(OverrideRepository.java:143)
at org.hibernate.cfg.reveng.OverrideRepository.addFile(OverrideRepository.java:110)
at org.codehaus.mojo.hibernate3.configuration.JDBCComponentConfiguration.loadRevengFile(JDBCComponentConfiguration.java:86)
at org.codehaus.mojo.hibernate3.configuration.JDBCComponentConfiguration.doConfiguration(JDBCComponentConfiguration.java:40)
at org.codehaus.mojo.hibernate3.configuration.AbstractComponentConfiguration.getConfiguration(AbstractComponentConfiguration.java:56)
at org.codehaus.mojo.hibernate3.HibernateExporterMojo.configureExporter(HibernateExporterMojo.java:200)
at org.codehaus.mojo.hibernate3.exporter.Hbm2JavaGeneratorMojo.configureExporter(Hbm2JavaGeneratorMojo.java:64)
at org.codehaus.mojo.hibernate3.HibernateExporterMojo.doExecute(HibernateExporterMojo.java:273)
at org.codehaus.mojo.hibernate3.HibernateExporterMojo.execute(HibernateExporterMojo.java:152)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.xml.sax.SAXParseException; lineNumber: 31; columnNumber: 33; The content of element type "hibernate-reverse-engineering" must match "(schema-selection*,type-mapping?,table-filter*,table*)".
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.endElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.dom4j.io.SAXReader.read(SAXReader.java:465)
at org.hibernate.cfg.reveng.OverrideRepository.addInputStream(OverrideRepository.java:142)
... 29 moreMy reason for reporting an error: I used to have two classes with entity classes, and then I was still generating them. After that, I deleted the configuration of these two reverse generated classes, and only configured those that had not been generated
I didn’t confirm whether there was a problem with the class before or my configuration. I checked my configuration many times, but I didn’t find any problem. I’ll follow up if I encounter it next time.
Command to export MySQL database in Linux
mysqldump –uroot –proot985 –all-databases > abc.sql
ABC is the database name and the password is root985. An error is reported at this time mysqldump:got error :1045
terms of settlement:
Add double quotation marks to the password on the command line
mysqldump –uroot –p“root985” –all-databases > abc.sql
Project started, database connection failed:
2018-06-26 14:01:00,168 |OFBiz-JobPoller |DBCPConnectionFactory |E| null
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_161]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_161]
at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_161]
at org.ofbiz.entity.connection.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:88) [ofbiz-entity.jar:?]
at org.ofbiz.geronimo.GeronimoTransactionFactory.getConnection(GeronimoTransactionFactory.java:83) [ofbiz-geronimo.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.getConnection(SQLProcessor.java:260) [ofbiz-entity.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.prepareStatement(SQLProcessor.java:366) [ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericDAO.selectListIteratorByCondition(GenericDAO.java:763) [ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericHelperDAO.findListIteratorByCondition(GenericHelperDAO.java:140) [ofbiz-entity.jar:?]
at org.ofbiz.entity.GenericDelegator.find(GenericDelegator.java:1775) [ofbiz-entity.jar:?]
at org.ofbiz.entity.GenericDelegator.findList(GenericDelegator.java:1811) [ofbiz-entity.jar:?]
at org.ofbiz.entity.util.EntityQuery.query(EntityQuery.java:451) [ofbiz-entity.jar:?]
at org.ofbiz.entity.util.EntityQuery.queryList(EntityQuery.java:376) [ofbiz-entity.jar:?]
at org.ofbiz.service.job.JobManager.reloadCrashedJobs(JobManager.java:294) [ofbiz-service.jar:?]
at org.ofbiz.service.job.JobPoller$JobManagerPoller.run(JobPoller.java:223) [ofbiz-service.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
2018-06-26 14:01:00,168 |OFBiz-JobPoller |GenericDelegator |E| Failure in findByCondition operation for entity [JobSandbox]: org.ofbiz.entity.GenericEntityException: com.mysql.jdbc.Driver (com.mysql.jdbc.Driver). Rolling back transaction.
org.ofbiz.entity.GenericEntityException: com.mysql.jdbc.Driver (com.mysql.jdbc.Driver)
at org.ofbiz.entity.connection.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:91) ~[ofbiz-entity.jar:?]
at org.ofbiz.geronimo.GeronimoTransactionFactory.getConnection(GeronimoTransactionFactory.java:83) ~[ofbiz-geronimo.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.getConnection(SQLProcessor.java:260) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.prepareStatement(SQLProcessor.java:366) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericDAO.selectListIteratorByCondition(GenericDAO.java:763) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericHelperDAO.findListIteratorByCondition(GenericHelperDAO.java:140) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.GenericDelegator.find(GenericDelegator.java:1775) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.GenericDelegator.findList(GenericDelegator.java:1811) [ofbiz-entity.jar:?]
at org.ofbiz.entity.util.EntityQuery.query(EntityQuery.java:451) [ofbiz-entity.jar:?]
at org.ofbiz.entity.util.EntityQuery.queryList(EntityQuery.java:376) [ofbiz-entity.jar:?]
at org.ofbiz.service.job.JobManager.reloadCrashedJobs(JobManager.java:294) [ofbiz-service.jar:?]
at org.ofbiz.service.job.JobPoller$JobManagerPoller.run(JobPoller.java:223) [ofbiz-service.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_161]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_161]
at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_161]
at org.ofbiz.entity.connection.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:88) ~[ofbiz-entity.jar:?]
... 12 more
2018-06-26 14:01:00,168 |OFBiz-JobPoller |JobManager |W| Unable to load crashed jobs
org.ofbiz.entity.GenericEntityException: org.ofbiz.entity.GenericEntityException: com.mysql.jdbc.Driver (com.mysql.jdbc.Driver) (com.mysql.jdbc.Driver (com.mysql.jdbc.Driver))
at org.ofbiz.entity.GenericDelegator.findList(GenericDelegator.java:1831) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.util.EntityQuery.query(EntityQuery.java:451) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.util.EntityQuery.queryList(EntityQuery.java:376) ~[ofbiz-entity.jar:?]
at org.ofbiz.service.job.JobManager.reloadCrashedJobs(JobManager.java:294) [ofbiz-service.jar:?]
at org.ofbiz.service.job.JobPoller$JobManagerPoller.run(JobPoller.java:223) [ofbiz-service.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
Caused by: org.ofbiz.entity.GenericEntityException: com.mysql.jdbc.Driver (com.mysql.jdbc.Driver)
at org.ofbiz.entity.connection.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:91) ~[ofbiz-entity.jar:?]
at org.ofbiz.geronimo.GeronimoTransactionFactory.getConnection(GeronimoTransactionFactory.java:83) ~[ofbiz-geronimo.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.getConnection(SQLProcessor.java:260) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.prepareStatement(SQLProcessor.java:366) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericDAO.selectListIteratorByCondition(GenericDAO.java:763) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericHelperDAO.findListIteratorByCondition(GenericHelperDAO.java:140) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.GenericDelegator.find(GenericDelegator.java:1775) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.GenericDelegator.findList(GenericDelegator.java:1811) ~[ofbiz-entity.jar:?]
... 5 more
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_161]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_161]
at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_161]
at org.ofbiz.entity.connection.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:88) ~[ofbiz-entity.jar:?]
at org.ofbiz.geronimo.GeronimoTransactionFactory.getConnection(GeronimoTransactionFactory.java:83) ~[ofbiz-geronimo.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.getConnection(SQLProcessor.java:260) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.prepareStatement(SQLProcessor.java:366) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericDAO.selectListIteratorByCondition(GenericDAO.java:763) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericHelperDAO.findListIteratorByCondition(GenericHelperDAO.java:140) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.GenericDelegator.find(GenericDelegator.java:1775) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.GenericDelegator.findList(GenericDelegator.java:1811) ~[ofbiz-entity.jar:?]
... 5 more
2018-06-26 14:01:00,171 |OFBiz-JobPoller |DBCPConnectionFactory |E| null
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_161]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_161]
at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_161]
at org.ofbiz.entity.connection.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:88) [ofbiz-entity.jar:?]
at org.ofbiz.geronimo.GeronimoTransactionFactory.getConnection(GeronimoTransactionFactory.java:83) [ofbiz-geronimo.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.getConnection(SQLProcessor.java:260) [ofbiz-entity.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.prepareStatement(SQLProcessor.java:366) [ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericDAO.selectListIteratorByCondition(GenericDAO.java:763) [ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericHelperDAO.findListIteratorByCondition(GenericHelperDAO.java:140) [ofbiz-entity.jar:?]
at org.ofbiz.entity.GenericDelegator.find(GenericDelegator.java:1775) [ofbiz-entity.jar:?]
at org.ofbiz.entity.util.EntityQuery.queryIterator(EntityQuery.java:392) [ofbiz-entity.jar:?]
at org.ofbiz.service.job.JobManager.poll(JobManager.java:194) [ofbiz-service.jar:?]
at org.ofbiz.service.job.JobPoller$JobManagerPoller.run(JobPoller.java:224) [ofbiz-service.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
2018-06-26 14:01:00,171 |OFBiz-JobPoller |JobManager |W| Exception thrown while polling JobSandbox:
org.ofbiz.entity.GenericEntityException: com.mysql.jdbc.Driver (com.mysql.jdbc.Driver)
at org.ofbiz.entity.connection.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:91) ~[ofbiz-entity.jar:?]
at org.ofbiz.geronimo.GeronimoTransactionFactory.getConnection(GeronimoTransactionFactory.java:83) ~[ofbiz-geronimo.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.getConnection(SQLProcessor.java:260) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.prepareStatement(SQLProcessor.java:366) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericDAO.selectListIteratorByCondition(GenericDAO.java:763) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericHelperDAO.findListIteratorByCondition(GenericHelperDAO.java:140) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.GenericDelegator.find(GenericDelegator.java:1775) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.util.EntityQuery.queryIterator(EntityQuery.java:392) ~[ofbiz-entity.jar:?]
at org.ofbiz.service.job.JobManager.poll(JobManager.java:194) [ofbiz-service.jar:?]
at org.ofbiz.service.job.JobPoller$JobManagerPoller.run(JobPoller.java:224) [ofbiz-service.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_161]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_161]
at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_161]
at org.ofbiz.entity.connection.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:88) ~[ofbiz-entity.jar:?]
... 10 more
2018-06-26 14:01:30,173 |OFBiz-JobPoller |DBCPConnectionFactory |E| null
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_161]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_161]
at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_161]
at org.ofbiz.entity.connection.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:88) [ofbiz-entity.jar:?]
at org.ofbiz.geronimo.GeronimoTransactionFactory.getConnection(GeronimoTransactionFactory.java:83) [ofbiz-geronimo.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.getConnection(SQLProcessor.java:260) [ofbiz-entity.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.prepareStatement(SQLProcessor.java:366) [ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericDAO.selectListIteratorByCondition(GenericDAO.java:763) [ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericHelperDAO.findListIteratorByCondition(GenericHelperDAO.java:140) [ofbiz-entity.jar:?]
at org.ofbiz.entity.GenericDelegator.find(GenericDelegator.java:1775) [ofbiz-entity.jar:?]
at org.ofbiz.entity.util.EntityQuery.queryIterator(EntityQuery.java:392) [ofbiz-entity.jar:?]
at org.ofbiz.service.job.JobManager.poll(JobManager.java:194) [ofbiz-service.jar:?]
at org.ofbiz.service.job.JobPoller$JobManagerPoller.run(JobPoller.java:224) [ofbiz-service.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
2018-06-26 14:01:30,173 |OFBiz-JobPoller |JobManager |W| Exception thrown while polling JobSandbox:
org.ofbiz.entity.GenericEntityException: com.mysql.jdbc.Driver (com.mysql.jdbc.Driver)
at org.ofbiz.entity.connection.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:91) ~[ofbiz-entity.jar:?]
at org.ofbiz.geronimo.GeronimoTransactionFactory.getConnection(GeronimoTransactionFactory.java:83) ~[ofbiz-geronimo.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.getConnection(SQLProcessor.java:260) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.jdbc.SQLProcessor.prepareStatement(SQLProcessor.java:366) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericDAO.selectListIteratorByCondition(GenericDAO.java:763) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.datasource.GenericHelperDAO.findListIteratorByCondition(GenericHelperDAO.java:140) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.GenericDelegator.find(GenericDelegator.java:1775) ~[ofbiz-entity.jar:?]
at org.ofbiz.entity.util.EntityQuery.queryIterator(EntityQuery.java:392) ~[ofbiz-entity.jar:?]
at org.ofbiz.service.job.JobManager.poll(JobManager.java:194) [ofbiz-service.jar:?]
at org.ofbiz.service.job.JobPoller$JobManagerPoller.run(JobPoller.java:224) [ofbiz-service.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_161]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_161]
at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_161]
at org.ofbiz.entity.connection.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:88) ~[ofbiz-entity.jar:?]
... 10 moreThe configuration file is OK and lacks the MySQL driver mysql-connector-java-5.1.25.jar
type Exception report
message Could not get next sequenced ID for sequence name: Visitor
description The server encountered an internal error that prevented it from fulfilling this request.
exception
java.lang.IllegalArgumentException: Could not get next sequenced ID for sequence name: Visitor
org.ofbiz.entity.GenericDelegator.getNextSeqId(GenericDelegator.java:2515)
org.ofbiz.entity.GenericDelegator.getNextSeqId(GenericDelegator.java:2503)
org.ofbiz.entity.GenericEntity.setNextSeqId(GenericEntity.java:626)
org.ofbiz.entity.GenericDelegator.createSetNextSeqId(GenericDelegator.java:789)
org.ofbiz.webapp.stats.VisitHandler.getVisitor(VisitHandler.java:245)
org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:206)
javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:326)
note The full stack trace of the root cause is available in the Apache Tomcat/8.0.33 logs.
Apache Tomcat/8.0.33
The database uses MySQL and is configured to start automatically, but it was shut down unexpectedly, resulting in an error.
Caused by: org.springframework.beans . factory.NoSuchBeanDefinitionException : No qualifying bean of type [ com.xxx.LanguageRecognizeService ] found for dependency [ com.xxxxxx.LanguageRecognizeService ]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@ org.springframework.beans . factory.annotation.Autowired (required=true)}
In general, this kind of error is that the definition of bean is not found and the XML file is not imported.
Another kind of error is no class found. There is an XML file, but the jar package is not loaded to classpath. POM has no dependency, or conflicts, or depends on a lower version.
Error in importing data from SSH framework of Java project:
19:17:12,518 WARN OgnlValueStack:64 - Error setting expression 'iid' with value '[Ljava.lang.String;@52b1eaed'
ognl.MethodFailedException: Method "setIid" failed for object Itemer [iid=0, iname=null, imanager=null, imember=null, id=1, cid=6] [java.lang.NoSuchMethodException: cn.zx.ghjmaven.domain.Itemer.setIid([Ljava.lang.String;)]
at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1305)
at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:1494)
at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:85)
at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162)
at com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.setProperty(ObjectAccessor.java:27)
at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2332)
at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.setProperty(CompoundRootAccessor.java:78)
at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2332)
at ognl.ASTProperty.setValueBody(ASTProperty.java:127)
at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:220)
at ognl.SimpleNode.setValue(SimpleNode.java:301)
at ognl.Ognl.setValue(Ognl.java:737)
at com.opensymphony.xwork2.ognl.OgnlUtil.setValue(OgnlUtil.java:234)
at com.opensymphony.xwork2.ognl.OgnlValueStack.trySetValue(OgnlValueStack.java:183)
at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:170)
at com.opensymphony.xwork2.ognl.OgnlValueStack.setParameter(OgnlValueStack.java:148)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:318)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:231)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:239)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:252)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:161)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:563)
at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoSuchMethodException: cn.zx.ghjmaven.domain.Itemer.setIid([Ljava.lang.String;)
at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1246)
... 67 more
/-- Encapsulated exception ------------\
java.lang.NoSuchMethodException: cn.zx.ghjmaven.domain.Itemer.setIid([Ljava.lang.String;)
at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1246)
at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:1494)
at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:85)
at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162)
at com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.setProperty(ObjectAccessor.java:27)
at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2332)
at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.setProperty(CompoundRootAccessor.java:78)
at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2332)
at ognl.ASTProperty.setValueBody(ASTProperty.java:127)
at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:220)
at ognl.SimpleNode.setValue(SimpleNode.java:301)
at ognl.Ognl.setValue(Ognl.java:737)
at com.opensymphony.xwork2.ognl.OgnlUtil.setValue(OgnlUtil.java:234)
at com.opensymphony.xwork2.ognl.OgnlValueStack.trySetValue(OgnlValueStack.java:183)
at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:170)
at com.opensymphony.xwork2.ognl.OgnlValueStack.setParameter(OgnlValueStack.java:148)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:318)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:231)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:239)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:252)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:161)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:563)
at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
\--------------------------------------/Error correction results:
In fact, I saw this mistake from the beginning, but I can’t understand why it was wrong. Let’s talk about my file configuration. First, upload is a file type file. Second, this function is to upload photos. Then I found the first error. The ectype of the form element in the JSP I want to upload is not set to enctype = “multipart/form data”. The second error is that many people did not pay attention to it completely, that is, our form submission method should be method = “post”. And the key is this method.
analysis:
Enctype = “multipart/form data” indicates that the content submitted by the file is binary, which can handle photos well. Moreover, the get method must be attached to the link to submit, so all submitted methods are Stirng. So you should choose to use post. But it should also be noted that the use of post transmission is more secure and efficient.
——Solutions——————–
without a form set to enctype ‘multipart/form-data’.
To set the enctype of the form.
<form id=”addItemerForm” action=”${ pageContext.request.contextPath }/bc/itemerAction_ save” method=”post” enctype=”multipart/form-data”>
The above is the method I found in Baidu search, but I didn’t upload the file, so I was very depressed. After reading the first line, I thought it must have something to do with ID, and then I tested it org.springframework.orm . hibernate3. Hibernatesystemexception error,
The reason for this error may be that the database primary key is self incrementing, but the background entity class primary key is not self incrementing. I just annotate the entity class ID with @ generatedvalue (strategy = identity)
Frame SSH
The previous packages are all OK. I create a management class of the service layer. When I add a new service, it appears:
Java project cannot import entity class package and service package, controller layer reports an error,
At the beginning, I thought that the package was wrong. I deleted the package in the controller layer and imported it again, but it still couldn’t work,
Check the cause of the error and find out
Then select fix project setup and it will be OK.
Record down, in Baidu did not find the answer, follow-up continuous attention, have to know the reason can leave a message, thank you~~