eclipse/jdt/core/compiler/ecj/4.5/ecj-4.5.jar

Exception in thread "main" java.lang.IllegalStateException: Failed to read Class-Path attribute from manifest of jar d:/spring-boot-repository/org/eclipse/jdt/core/compiler/ecj/4.5/ecj-4.5.jar
    at org.springframework.boot.devtools.restart.ChangeableUrls.getUrlsFromClassPathOfJarManifestIfPossible(ChangeableUrls.java:100)
    at org.springframework.boot.devtools.restart.ChangeableUrls.fromUrlClassLoader(ChangeableUrls.java:88)
    at org.springframework.boot.devtools.restart.DefaultRestartInitializer.getUrls(DefaultRestartInitializer.java:91)
    at org.springframework.boot.devtools.restart.DefaultRestartInitializer.getInitialUrls(DefaultRestartInitializer.java:54)
    at org.springframework.boot.devtools.restart.Restarter.<init>(Restarter.java:134)
    at org.springframework.boot.devtools.restart.Restarter.initialize(Restarter.java:531)
    at org.springframework.boot.devtools.restart.RestartApplicationListener.onApplicationStartedEvent(RestartApplicationListener.java:64)
    at org.springframework.boot.devtools.restart.RestartApplicationListener.onApplicationEvent(RestartApplicationListener.java:46)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:166)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:138)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:121)
    at org.springframework.boot.context.event.EventPublishingRunListener.publishEvent(EventPublishingRunListener.java:111)
    at org.springframework.boot.context.event.EventPublishingRunListener.started(EventPublishingRunListener.java:60)
    at org.springframework.boot.SpringApplicationRunListeners.started(SpringApplicationRunListeners.java:48)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:302)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1185)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1174)
    at com.demo.App.main(App.java:171)

我的App不能运行了,报上错误了. 原因是 ; pom.xml中开启了Servlet依赖:

<!-- servlet 依赖. -->
      <dependency>
           <groupId>javax.servlet</groupId>
           <artifactId>javax.servlet-api</artifactId>
           <scope>provided</scope>
       </dependency>
    <!--

           JSTL（JSP Standard Tag Library，JSP标准标签库)是一个不断完善的开放源代码的JSP标签库，是由apache的jakarta小组来维护的。JSTL只能运行在支持JSP1.2和Servlet2.3规范的容器上，如tomcat 4.x。在JSP 2.0中也是作为标准支持的。

           不然报异常信息：

           javax.servlet.ServletException: Circular view path [/helloJsp]: would dispatch back to the current handler URL [/helloJsp] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)
           
        -->

       <dependency>
           <groupId>javax.servlet</groupId>
           <artifactId>jstl</artifactId>
       </dependency>
        <!-- tomcat 的支持.-->
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-tomcat</artifactId>
           <scope>provided</scope>
       </dependency>
       <dependency>
           <groupId>org.apache.tomcat.embed</groupId>
           <artifactId>tomcat-embed-jasper</artifactId>
           <scope>provided</scope>
       </dependency>

-----------------------------------解决办法,把servlet依赖注释掉就可以了.