SpringBoot错误的整理

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#错误总结

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1.新建Spring boot,出现src的包上出现错误的叉号：

分析原因: 你要更新一下选择项目—–Maven—-Updata project，或者删除jar包—Libraries—Maven Dependencies，然后重新关闭eclipse，重新启动！

2.如果你项目与别人一样，怎么试都不行，还是报错，或者其它问题：

分析原因:记住一句话，小问题重启，大问题重装！

3.启动时出现警告：

分析原因: 项目目录设计错误

                 src
                 |_main
                 |_java
                 |_package name
                 |_xxxController
                 |_Application
                application.Java 文件不能直接放在main/java文件夹下，必须要建一个包把他放进去

4.Web项目无法访问resources/templates/xxx.html文件
分析原因:没有导入相关模板的依赖
3.启动时出现NoSuchBeanDefinitionException: No qualifying bean of type [con: No qualifying bean of type
分析原因:@SpringApplicationConfiguration
5.BasicErrorController提供两种返回错误一种是页面返回、当你是页面请求的时候就会返回页面，另外一种是json请求的时候就会返回json错误：
分析原因:

@RequestMapping(produces = "text/html")
    public ModelAndView errorHtml(HttpServletRequest request,
            HttpServletResponse response) {
        HttpStatus status = getStatus(request);
        Map<String, Object> model = Collections.unmodifiableMap(getErrorAttributes(
                request, isIncludeStackTrace(request, MediaType.TEXT_HTML)));
        response.setStatus(status.value());
        ModelAndView modelAndView = resolveErrorView(request, response, status, model);
        return (modelAndView == null ? new ModelAndView("error", model) : modelAndView);
    }

    @RequestMapping
    @ResponseBody
    public ResponseEntity<Map<String, Object>> error(HttpServletRequest request) {
        Map<String, Object> body = getErrorAttributes(request,
                isIncludeStackTrace(request, MediaType.ALL));
        HttpStatus status = getStatus(request);
        return new ResponseEntity<Map<String, Object>>(body, status);
          }

6.javax.servlet.ServletException: Circular view path [login]: would dispatch back to the current handler URL [/login] again出现错误：
分析原因:当没有声明ViewResolver时，spring会注册一个默认的ViewResolver，就是JstlView的实例，该对象继承自InternalResoureView。
JstlView用来封装JSP或者同一Web应用中的其他资源，它将model对象作为request请求的属性值暴露出来, 并将该请求通过javax.servlet.RequestDispatcher转发到指定的URL.
Spring认为，这个view的URL是可以用来指定同一web应用中特定资源的，是可以被RequestDispatcher转发的。
也就是说，在页面渲染(render)之前，Spring会试图使用RequestDispatcher来继续转发该请求。
解决:消除缺省转发,修改view和path，让他们不同名。
7.当以.yml结尾的配置出现报错：
分析原因：
格式很重要,一定要慎重,多一个空格或者少一个都不行!!!
if xxxxxx：
（空格）xxxxx

8.当出现错误java.net.BindException: Address already in use: bind
解决：打开Windows进程管理器结束javaw.exe，重新运行。并在每次启动程序前，结束之前的运行。
9.当出现错误Spring Boot Error: java.lang.NoSuchMethodError
解决：仔细搜索报错信息中的方法名，查看出错类中是否缺少某方法。笔者此次报错由于org.springframework.core.ResolvableType.forInstance方法找不到所致，又想起之前在pom.xml中移除了parent依赖，想起是否改文件没有完整下载。查询了官网说明：当移除parent依赖时，需要增加spring-boot-dependencies的依赖。因此pom.xml中在前新增以下依赖。

<dependencyManagement>  
  <dependencies>  
    <dependency>  
      <groupId>org.springframework.boot</groupId>  
      <artifactId>spring-boot-dependencies</artifactId>  
      <version>1.3.3.RELEASE</version>  
      <type>pom</type>  
      <scope>import</scope>  
    </dependency>  
  </dependencies>  
</dependencyManagement>

10.当出现错误java -jar myApplication.jar
分析原因：系统报错，Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.
解决：在Application.java主程序入口中加入以下代码：
@Bean
public EmbeddedServletContainerFactory servletContainer() {

TomcatEmbeddedServletContainerFactory factory = new TomcatEmbeddedServletContainerFactory();  
return factory;

}
11.启动spring boot报错
解决：这个原因是maven依赖包冲突，有重复的依赖。检查一下你引入的jar包里面是不是有相同的方法名。
12.结果启动时报错BeanCreationException：
org.springframework.beans.factory.BeanCreationException:
Error creating bean with name ‘userController’:
Injection of autowired dependencies failed;
nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.caizhaotu.dao.user.UserRepository com.caizhaotu.controller.user.UserController.userRepository;
nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘userRepository’: Invocation of init method failed; nested exception is java.util.NoSuchElementException
解决：application.java 可以放在controller、service、dao层都可以，但是要保证application.java 包位置处于所有层的上级，比如com.xxx.web、com.xxx.service、com.xxx.dao。把application.java放在com.xxx即可。@SpringBootApplication 注解效果等于 @Configuration，@EnableAutoConfiguration 及 @ComponentScan 这三个注解一起使用，所以不要在 Controller 在启动类上面添加 @EnableAutoConfiguration 。
13.class TaskImpl 中注入失败，目标变量为null并报错
解决：1.一些业务细节代码已经单机跑通了。 2.使用了@SpringBootApplication进行自动化配置与扫描。3.没有遗漏的@Component。
14.Spring Boot单元测试报错
java.lang.NoClassDefFoundError: org/mockito/internal/util/MockUtil

 at org.springframework.boot.test.mock.mockito.MockReset.<clinit>(MockReset.java:56)
    at org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener.beforeTestMethod(ResetMocksTestExecutionListener.java:44)
    at org.springframework.test.context.TestContextManager.beforeTestMethod(TestContextManager.java:269)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:262)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:84)
Caused by: java.lang.ClassNotFoundException: org.mockito.internal.util.MockUtil
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

解决：在build.gradle引用compile中加入[group: ‘org.mockito’, name: ‘mockito-all’, version: ‘1.10.19’]
15.eclipse新建springboot的项目，出现以下错误:
The type org.springframework.context.ConfigurableApplicationContext cannot be resolved. It is indirectly referenced from required .class files`
解决：执行 mvn dependency:purge-local-repository mvn clean
16.

[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:1.4.3.RELEASE:repackage (default-cli) on project springboot_1: Execution default-cli of goal org.springframework.boot:spring-boot-maven-plugin:1.4.3.RELEASE:repackage failed: Source must refer to an existing file -> [Help 1]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] For more information about the errors and possible solutions, please read the following articles:

解决：直接使用maven的package命令，即可完成打包，若有新的内容添加，可以使用spring-boot-maven-plugin的repackage命令.详细步骤如下图

17.使用spring boot 使用druid，启动tomcat时报错：提示由于unregister mbean error导致无法启动启动类。

 解决：在配置文件加入spring.jmx.enabled: false

出现这样的错误：

at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:749) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:467) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]

  解决：删除jar包，重新导入。

19.在spring boot项目中出现不能加载iframe 页面报一个”Refused to display ‘http://……’ in a frame because it set ‘X-Frame-Options’ to ‘DENY’. “错误
解决：因spring Boot采取的java config，在配置spring security的位置添加：

@Override
protected void configure(HttpSecurity http) throws Exception {
       http.headers().frameOptions().disable();
     http
      .csrf().disable();
     http
      .authorizeRequests()
             .anyRequest().authenticated();
      http.formLogin()
          .defaultSuccessUrl("/platform/index",true)
          .loginPage("/login")
          .permitAll()
        .and()
          .logout()
           .logoutUrl("/logout");

      http.addFilterBefore(wiselyFilterSecurityInterceptor(),FilterSecurityInterceptor.class);

}

20.错误提示如下:
Caused by: java.lang.IllegalStateException: Tomcat connector in failed state
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:159) ~[spring-boot-1.3.6.RELEASE.jar:1.3.6.RELEASE]
… 15 common frames omitted
2017-04-14 19:36:55.419 ERROR 19420 — [ restartedMain] o.a.coyote.http11.Http11NioProtocol : Failed to start end point associated with ProtocolHandler [“http-nio-8080”]
解决：是NI server占据了8080端口。
21.出现springboot框架maven构建fastJson启动报错。

Exception in thread "main" java.lang.IllegalStateException: Failed to read Class-Path 
attribute from manifest of jar file:
/E:/myRepository/repositotyExe/repositoty/com/alibaba/fastjson/1.2.32/fastjson-1.2.32.jar
at org.springframework.boot.devtools.restart.ChangeableUrls.
getUrlsFromClassPathOfJarManifestIfPossible(ChangeableUrls.java:110)
at org.springframework.boot.devtools.restart.ChangeableUrls.fromUrlClassLoader
(ChangeableUrls.java:96)
at org.springframework.boot.devtools.restart.DefaultRestartInitializer.getUrls
(DefaultRestartInitializer.java:93)
at org.springframework.boot.devtools.restart.DefaultRestartInitializer.getInitialUrls(
DefaultRestartInitializer.java:56)
at org.springframework.boot.devtools.restart.Restarter.<init>(Restarter.java:140)
at org.springframework.boot.devtools.restart.Restarter.initialize(Restarter.java:546)
at org.springframework.boot.devtools.restart.RestartApplicationListener.onApplication
StartingEvent(RestartApplicationListener.java:67)
at org.springframework.boot.devtools.restart.RestartApplicationListener.onApplicationEvent
(RestartApplicationListener.java:45)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener
(SimpleApplicationEventMulticaster.java:167)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent
(SimpleApplicationEventMulticaster.java:139)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent
(SimpleApplicationEventMulticaster.java:122)
at org.springframework.boot.context.event.EventPublishingRunListener.starting(
EventPublishingRunListener.java:68)
at org.springframework.boot.SpringApplicationRunListeners.starting(SpringAppl
icationRunListeners.java:48)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151)
at com.bldz.springboot.Spring_Boot_JdbcTemplate.App.main(App.java:14)
Caused by: java.util.zip.ZipException: invalid LOC header (bad signature)
    at java.util.zip.ZipFile.read(Native Method)
    at java.util.zip.ZipFile.access$1400(ZipFile.java:60)
    at java.util.zip.ZipFile$ZipFileInputStream.read(ZipFile.java:717)
    at java.util.zip.ZipFile$ZipFileInflaterInputStream.fill(ZipFile.java:419)
    at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:158)
    at sun.misc.IOUtils.readFully(IOUtils.java:65)
    at java.util.jar.JarFile.getBytes(JarFile.java:425)
    at java.util.jar.JarFile.getManifestFromReference(JarFile.java:193)
    at java.util.jar.JarFile.getManifest(JarFile.java:180)
    at org.springframework.boot.devtools.restart.ChangeableUrls.getUrlsFromCl
assPathOfJarManifestIfPossible(ChangeableUrls.java:107)
    ... 16 more

**解决：删除maven仓库下的 /E:/myRepository/repositotyExe/repositoty/com/alibaba/fastjson/1.2.32/fastjson-1.2.32.jar,重新编译即可!**

22.Spring Boot Maven项目启动报错

ERROR 2172 --- [ main] o.s.boot.SpringApplication : Application startup failed    org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Jetty servlet container
at org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainer.start(JettyEmbeddedServletContainer.java:124) ~[spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:293) ~[spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:141) ~[spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) ~[spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:764) [spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:357) [spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:305) [spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1124) [spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1113) [spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at com.easemob.weichat.gateway.im.IMRoutewayServerStarter.main(IMRoutewayServerStarter.java:28) [classes/:na]
Caused by: java.net.BindException: Address already in use
at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_112]
at sun.nio.ch.Net.bind(Net.java:433) ~[na:1.8.0_112]
at sun.nio.ch.Net.bind(Net.java:425) ~[na:1.8.0_112]
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) ~[na:1.8.0_112]
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[na:1.8.0_112]
at org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:321) ~[jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:80) ~[jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:236) ~[jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) ~[jetty-util-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainer.start(JettyEmbeddedServletContainer.java:118) ~[spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
... 10 common frames omitted

   解决：典型的端口被占用，，改下你的boot启动端口。