Spring Cloud Config does not read bootstrap.properties/yml
Again, most of the problems in the SpringBoot Cloud are versioning issues
ter 2.4.0 is not available (so I revert to 2.3.7) and instead of using Spring Cloud2020, I use Hoxton.sr9
The urlliB2 module of Python is used to obtain the data code as follows:
Try:
data = urllib2.urlopen(url).read()
except Exception,e:
print e
return dataUrl parameter is:
http://sms.gildata.com:8080/sms/sendSms.do?content=Hello world&msisdns=18373239087&user=gildata2&key=804The following problems occurred while executing the code:
HTTP Error 505: the HTTP Version Not Supported
online are urllib2 module does Not support http1.1 agreement, must carry on the processing of one sort or another, but I later found out that seems to be the url does Not support Spaces, I will Hello world this parameter Spaces take out, can successfully send text messages to come out, if it is in space can be used to add escape character % 20 instead of Spaces, you can also use % 0 a instead of a newline.
hint: the database has changed.
Use the last two steps in the “database has changed” loop until alter Database Open. No more error, “Database has changed”.
Up to this point, I will follow the original blogger’s operation. Now I need to close the command line and click computer — > Management – & gt; After the service, find the Oracle-related service and stop it, and then restart it. Oracle services are closed and started in a certain order, specific query can be online.
You can also refer to the following website content for setting, I did not try, roughly the same.
http://www.linuxidc.com/Linux/2016-04/130111.htm
dict.get(key)
If you read with dict[key] it will report a KeyError exception,
Dict. Get method mainly provides a function to return the default value if the value of corresponding key is not obtained.
And dict[key] actually calls the method with ___
D.get(key[, d]) -> D[K] if K in D, else D. defaults to None
Solutions:
Execute mysql command: Show Full ProcessList;
Then find the system ID of the query statement: kill the thread ID that is being locked
Select * from information_schema.innodb_trx; select * from information_schema.innodb_trx;
Refer to the article: http://my.oschina.net/quanzhong/blog/222091
http://blog.sina.com.cn/s/blog_53e68b3b0101bjxi.html
NotImplemented is a non-exception object, and NotImplementedError is an exception object.
>>> NotImplemented NotImplemented >>> NotImplementedError <type 'exceptions.NotImplementedError'> >>> type(NotImplemented) <type 'NotImplementedType'> >>> type(NotImplementedError) <type 'type'>
TypeError is obtained if NotImplemented is thrown, because it is not an exception. Throwing a NotImplementedError will normally catch the exception.
>>> raise NotImplemented
Traceback (most recent call last):
File "<pyshell#10>", line 1, in <module>
raise NotImplemented
TypeError: exceptions must be old-style classes or derived from BaseException, not NotImplementedType
>>> raise NotImplementedError
Traceback (most recent call last):
File "<pyshell#11>", line 1, in <module>
raise NotImplementedError
NotImplementedErrorWhy is there a NotImplemented and a NotImplementedError?
Sorting a list in Python often USES a comparison operation such as ___ ().
Sometimes Python’s internal algorithms choose another way to determine the comparison result, or simply choose a default result. If an exception is thrown, the sorting operation will be broken. Therefore, it will not be thrown if NotImplemented is used, thus Python can try other methods.
The NotImplemented object sends a signal to the runtime environment to tell it that if the current operation fails, it should check out other feasible methods. For example, in the expression a == b, if a. ___, eq__(b) returns NotImplemented, Python will try B. ___ (a). If the call to the method of B/eq__ can return True or False, the expression is successful. If b.__eq__(a) also fails, Python continues to try other methods, such as using! = to compare.
ref:http://www.cnblogs.com/ifantastic/p/3682268.html
if headers:
req=urllib2.Request(url,headers=headers)
else :
req=urllib2.Request(url)
opener=urllib2.build_opener(cookieproc)
urllib2.install_opener(opener)
page=urllib2.urlopen(req,timeout=5).read() can be changed after adding a loop:
if headers:
req=urllib2.Request(url,headers=headers)
else :
req=urllib2.Request(url)
opener=urllib2.build_opener(cookieproc)
urllib2.install_opener(opener)
global Max_Num
Max_Num=6
for i in range(Max_Num):
try:
page=urllib2.urlopen(req,timeout=5).read()
break
except:
if i < Max_Num-1:
continue
else :
print 'URLError: <urlopen error timed out> All times is failed 'This exception can generally be resolved
public interface OnErrorListener
{
/**
* Called to indicate an error.
*
* @param mp the MediaPlayer the error pertains to
* @param what the type of error that has occurred:
* <ul>
* <li>{@link #MEDIA_ERROR_UNKNOWN}
* <li>{@link #MEDIA_ERROR_SERVER_DIED}
* </ul>
* @param extra an extra code, specific to the error. Typically
* implementation dependent.
* <ul>
* <li>{@link #MEDIA_ERROR_IO}
* <li>{@link #MEDIA_ERROR_MALFORMED}
* <li>{@link #MEDIA_ERROR_UNSUPPORTED}
* <li>{@link #MEDIA_ERROR_TIMED_OUT}
* <li><code>MEDIA_ERROR_SYSTEM (-2147483648)</code> - low-level system error.
* </ul>
* @return True if the method handled the error, false if it didn't.
* Returning false, or not having an OnErrorListener at all, will
* cause the OnCompletionListener to be called.
*/
boolean onError(MediaPlayer mp, int what, int extra);
}So the problem I have is the error “MEDIA_ERROR_SYSTEM”, the reason is “system version is too low error”… Then I looked it up on the Internet and found that video files are usually in MP4, AVI, etc., but even if they are in the same file format, they may have different encoding formats. For example, common coding formats are: H.264, H.263 and so on. However, many Andorid devices can only support partial encoding, which results in some videos that cannot be played on Andorid devices. If you have to play these videos, it involves the complicated operation of video transcoding… I haven’t learned this skill yet, so I’ll dig a hole and fill it up later
package com.text;
public class Lambda {
public static void main(String[] args) {
Lambda lambda = new Lambda();
lambda.oldRunable();
lambda.runable();
}
public void oldRunable() {
new Thread(new Runnable() {
public void run() {
System.out.println("The old runable now is using!");
}
}).start();
}
public void runable() {
new Thread(()->System.out.println("It's a lambda function!")).start();
}
}
Code line 19 reports an error:
Multiple markers at this line
- Syntax error on tokens, Expression expected instead
- Syntax error on token(s), misplaced construct (s)After a search on the Internet, there was no explanation for this anomaly, and then I decided to run IDEA for a try. It turned out that the same code IDEA was not wrong, so this is for record
The author estimates that it may be because the version of MyEclipse8.5 is too low, but the author has not changed the version of MyEclipse, and I will try it again in the future. You are welcome to comment on the upgraded version, thank you