Tag Archives: ecmascript

[Solved] SpringMVC Shiro Error: org.apache.shiro.UnavailableSecurityManagerException No SecurityManager

The configuration is as follows:

    <!-- shiro -->
    <filter>
        <filter-name>shiroFilter</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
        <init-param>
            <param-name>targetFilterLifecycle</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>shiroFilter</filter-name>
        <url-pattern>/</url-pattern>
    </filter-mapping>

The error is reported as follows:

SEVERE: Servlet.service() for servlet [springMVC] in context with path [/myweb] threw exception [Request processing failed; nested exception is org.apache.shiro.UnavailableSecurityManagerException: No SecurityManager accessible to the calling code, either bound to the org.apache.shiro.util.ThreadContext or as a vm static singleton.  This is an invalid application configuration.] with root cause
org.apache.shiro.UnavailableSecurityManagerException: No SecurityManager accessible to the calling code, either bound to the org.apache.shiro.util.ThreadContext or as a vm static singleton.  This is an invalid application configuration.
    at org.apache.shiro.SecurityUtils.getSecurityManager(SecurityUtils.java:123)
    at org.apache.shiro.subject.Subject$Builder.<init>(Subject.java:627)
    at org.apache.shiro.SecurityUtils.getSubject(SecurityUtils.java:56)
    at com.myweb.controller.UserController.login(UserController.java:136)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:776)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:151)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1527)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1484)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:722)

Solution:

Replace “/” to “/*” in url-pattern

    <!-- shiro -->
    <filter>
        <filter-name>shiroFilter</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
        <init-param>
            <param-name>targetFilterLifecycle</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>shiroFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

[Solved] fontconfig cross-compilation Error: PRI_CHAR_WIDTH_STRONG

make report an error as below:
“fontconfig-2.12.1/src/fcmatch.c:324:63: error: ‘PRI_CHAR_WIDTH_STRONG’ undeclared here (not in a function); did you mean ‘PRI_WIDTH_STRONG’?”

"fontconfig-2.12.1/src/fcmatch.c:324:63: error: ‘PRI_CHAR_WIDTH_STRONG' undeclared here (not in a function); did you mean ‘PRI_WIDTH_STRONG’?"

Solution:
Enter the source code directory. My path is
1.
fontconfig-2.12.1/fontconfig/fontconfig.h
Found #define FC_CHAR_WIDTH “charwidth” /* Int / deleted
Add #define FC_CHARWIDTH “charwidth” / Int */
#define FC_CHAR_WIDTH FC_CHARWIDTH
2.
fontconfig-2.12.1/src/fcobjs.h
Find FC_OBJECT (CHAR_WIDTH, FcTypeInteger, NULL) and delete it.
Add FC_OBJECT (CHARWIDTH, FcTypeInteger, NULL)
3.
fontconfig-2.12.1/src/fcobjshash.gperf
Find “CHARWIDTH”, FC_CHAR_WIDTH_OBJECT and delete it.
Add “charwidth”,FC_CHARWIDTH_OBJECT
4.
fontconfig-2.12.1/src/fcobjshash.h
Find {(int)(long)&((struct FcObjectTypeNamePool_t *)0)->FcObjectTypeNamePool_str45,FC_CHAR_WIDTH_OBJECT}, delete
add {(int)(long)&((struct FcObjectTypeNamePool_t *)0)->FcObjectTypeNamePool_str45,FC_CHARWIDTH_OBJECT},
End, make && make install successful
is to modify and replace a few macro definitions, you can happily edit cairo!
Although the high version of fontconfig does not have this error, but the cross-compiler reported that the other failed to solve

[Solved] vue error: error Component name “School“ should always be multi-word vue/multi-word-component-names

Error details:

error Component name “School” should always be multi-word vue/multi-word-component-names

Cause: when checking the syntax, the non-standard naming is regarded as a syntax error.

Solution: turn off syntax checking

Add the following codes in vue.config.js:

const { defineConfig } = require('@vue/cli-service')
module.exports = defineConfig({
  transpileDependencies: true,
  lintOnSave:false /*Turn off syntax checking*/
})

[Solved] Vue-cli Error: Module not found: Error: Can‘t resolve ‘vue-router ‘

Error Messages:

Compiled with problems:X
ERROR in ./src/router/index.js 2:0-23
Module not found: Error: Can’t resolve ‘vue ‘ in ‘D:\F\XX\project-SPH\app\src\router’

ERROR in ./src/router/index.js 3:0-36
Module not found: Error: Can’t resolve ‘vue-router ‘ in ‘D:\F\XX\project-SPH\app\src\router’

ERROR in ./src/router/index.js 8:0-36
Module not found: Error: [CaseSensitivePathsPlugin] `D:\F\XX\project-SPH\app\src\pages\search\index.vue` does not match the corresponding path on disk `Search`.

The incorrect index.js code at this point is as follows:

// Where to configure routing
import Vue from 'vue ';
import VueRouter from 'vue-router ';//Using the plug-in
Vue.use(VueRouter);
//Introduction of routing components
import Home from '@/pages/Home'
import Search from '@/pages/search'
import Login from '@/pages/Login'
import Register from '@/pages/Register'
//configure routing
export default new VueRouter({
//configure routing
    routes:[
    {
        path : "/home",
        component:Home
    },{
        path: " /search",
        component:Search
    },{
        path: " /login",
        component:Login
    },{
        path: " /register",
        component:Register
    }
    ]
})

Process

At first, it was because Vue-router could not be installed. I suspected that Vue-router was not installed properly.

After an afternoon of Googling to find the cause, I decided to look at the code myself to see what the error meant. There are a total of 3 code: all point to the index.js file.

The first place: pointing to Search, I looked at the reference Search place, found written in lower case.

The second place: the reference to vue and vue-router, after careful observation, I found that I wrote an extra space.

After correction, it can be run again without any error.

[Solved] VUE Error: listen EADDRNOTAVAIL: address not available

VUE Error: listen EADDRNOTAVAIL: address not available

vue Project npm run dev Error: Error: listen EADDRNOTAVAIL: address not available …

Cause: the configured IP address is incorrect.

Solution: open the config folder and find index.js file, modify the value of host to localhost , as shown in the following figure

[Solved] Element form method resetfields() error: vue.runtime.esm.js?2b0e:1888 TypeError: Cannot read properties of undefined (reading ‘indexOf’)

Element form method resetfields() error

Codes:

// Form Reset
export function resetForm(refName) {
    // The purpose of adding the if condition is to solve the problem of non-existent objects in the console
    if (this.$refs[refName] ) {
        this.$refs[refName].resetFields();
    }
}

Error Messages:

vue.runtime.esm.js?2b0e:1888 TypeError: Cannot read properties of undefined (reading 'indexOf')
    at VueComponent.resetField (element-ui.common.js?5c96:23528)
    at eval (element-ui.common.js?5c96:22945)
    at Array.forEach (<anonymous>)
    at VueComponent.resetFields (element-ui.common.js?5c96:22944)
    at VueComponent.resetForm (ruoyi.js?c38a:51)
    at VueComponent.reset (index.vue?6ced:2165)
    at VueComponent.handleCopy (index.vue?6ced:2504)
    at click (index.vue?e6ab:1003)
    at invokeWithErrorHandling (vue.runtime.esm.js?2b0e:1854)
    at VueComponent.invoker (vue.runtime.esm.js?2b0e:2179)

Solution:

// Form reset
export function resetForm(refName) {
// The purpose of adding the if condition is to solve the problem of non-existent objects in the console
    if (this.$refs[refName] !== undefined) {
        this.$refs[refName].resetFields();
    }
}

Another possibility for this type of problem is that the prop is not assigned a value, and a similar problem can occur:

 <el-form-item label="Self-pickup offer">
              <el-input
                v-model="form.selfOffer"
                :clearable="true"
                :disabled="disabled"
                placeholder="Please enter a discount price"
                @input="inputCityFloat"
              >
                <template slot="append">Yuan</template>
              </el-input>
            </el-form-item>

js: SyntaxError: Cannot use import statement outside a module

Error:

js: SyntaxError: Cannot use import statement outside a module

Solution:
Add:

Done!

Reference:
https://stackoverflow.com/questions/58384179/syntaxerror-cannot-use-import-statement-outside-a-module

[vue/no-parsing-error] Parsing error: x-invalid-end-tag.eslint-plugin-vue

If the figure reports an error

solution:
Step 1: set

Step 2: search vetur.validation.template and uncheck

[Solved] Vue Error: error ‘xxx‘ is defined but never used no-unused-vars

If there is an error, solve it: ‘action’ is defined but never used no unused vars

* * error reason: * * because the built Vue project selects the eslint verification specification -> The eslint specification is that you either don’t define a variable or you must use it if you define it

Solution:

Add the following code into the package.json file (restart the project after saving!!!)

"rules": {
    "generator-star-spacing": "off",
    "no-tabs":"off",
    "no-unused-vars":"off",
    "no-console":"off",
    "no-irregular-whitespace":"off",
    "no-debugger": "off"
}

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Tag Archives: ecmascript

[Solved] SpringMVC Shiro Error: org.apache.shiro.UnavailableSecurityManagerException No SecurityManager

[Solved] fontconfig cross-compilation Error: PRI_CHAR_WIDTH_STRONG

[Solved] vue error: error Component name “School“ should always be multi-word vue/multi-word-component-names

[Solved] Vue-cli Error: Module not found: Error: Can‘t resolve ‘vue-router ‘

[Solved] VUE Error: listen EADDRNOTAVAIL: address not available

[Solved] Element form method resetfields() error: vue.runtime.esm.js?2b0e:1888 TypeError: Cannot read properties of undefined (reading ‘indexOf’)

js: SyntaxError: Cannot use import statement outside a module

[vue/no-parsing-error] Parsing error: x-invalid-end-tag.eslint-plugin-vue

[Solved] Vue Error: error ‘xxx‘ is defined but never used no-unused-vars