23:31 提问
用idea15开发 springmvc项目时报404错误，求大神告知原因
web.xml配置如下：restorg.springframework.web.servlet.DispatcherServletcontextConfigLocation/WEB-INF/rest-servlet.xml1rest/restful/*
rest-servlet.xml配置如下：
&beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"&
&description&Spring MVC for Restful&/description&
&!--检测注解 --&
&context:component-scan base-package="com.onlyyou.java.controller" /&
&context:annotation-config /&
&mvc:annotation-driven /&
&mvc:default-servlet-handler/&
Controller代码如下：
@Controller
@RequestMapping("/hello")
public class HelloController {
@RequestMapping(value="/user", method= RequestMethod.GET)
@ResponseBody
public UserBean testParam(@RequestParam("username") String name) {
UserBean userBean = new UserBean();
userBean.setAvatar("123");
userBean.setBirthday("323");
userBean.setCensusRegister("dfda");
return userB
最后再浏览器访问http://localhost:6080/onlyyou/restful/hello/user?username=tom报404的错误
按赞数排序
重新粘贴一下代码,web.xml如下：
&?xml version="1.0" encoding="UTF-8"?&
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1"&contextConfigLocation/WEB-INF/applicationContext.xmlorg.springframework.web.context.ContextLoaderListener
&servlet-name&rest&/servlet-name&
&servlet-class&org.springframework.web.servlet.DispatcherServlet&/servlet-class&
&init-param&
&param-name&contextConfigLocation&/param-name&
&param-value&/WEB-INF/rest-servlet.xml&/param-value&
&/init-param&
&load-on-startup&1&/load-on-startup&
&/servlet&
&servlet-mapping&
&servlet-name&rest&/servlet-name&
&url-pattern&/restful/*&/url-pattern&
&/servlet-mapping&
6080端口，，写错了吗？
其他相似问题SpringMVC报错，看不懂，求解
严重: Servlet.service() for servlet [SpringMVC] in context with path [/shop] threw exception [Handl nested exception is java.lang.NoClassDefFoundError: org/springframework/core/annotation/SynthesizingMethodParameter] with root cause
java.lang.ClassNotFoundException: org.springframework.core.annotation.SynthesizingMethodParameter
spring的jar包有没有放置正确，是否完整、版本是否正确，你的配置是否正确。
因为“org.springframework.core.annotation.SynthesizingMethodParameter“这个类是要在spring4.2开始才有的
--- 共有 1 条评论 ---
嗯，我换了高版本的包，然后好了
我觉得是不是你tomcat下面部署了多个项目，然后项目的包名是一样的
--- 共有 1 条评论 ---
没有类？jar包不完整？错误信息太少了，不能定位
--- 共有 1 条评论 ---
我给出了全部错误信息，帮我看看
引用来自“阿信sxq”的评论没有类？jar包不完整？错误信息太少了，不能定位java.lang.ClassNotFoundException: org.springframework.core.annotation.SynthesizingMethodParameter
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1333)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1167)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:442)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:434)
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.doGet(FrameworkServlet.java:857)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
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.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:212)
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:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
你现在又贴出来的不是说类没找到么
检查一下 应该少jar包
还有可能是一些jar包与spring版本不兼容，比如有的jar包依赖spring的SynthesizingMethodParameter，而你用的spring版本没这个类。我查了下这个类好像是源自spring 4.2的。
--- 共有 1 条评论 ---
嗯，jar包版本和Spring版本要尽量靠近
这是缺少jar包的报错，查看这里：http://www.whatjar.net/s.do?keyword=org%2Fspringframework%2Fcore%2Fannotation%2FSynthesizingMethodParameter
--- 共有 1 条评论 ---
谢谢，已解决，有那个包，只是版本太低了}