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相信很多的朋友在开发过程中都或多或少的遇见一些异常，下面我给大家说一说nosuchrequesthandlingmethodexception
这个异常说的是找不到处理这样的请求方法，那是什么原因导致的：
下面我来说说我的在项目中遇见的，上线的项目运行了两周，查看日志记录，就出现了一个异常信息：
[error] [2018-10-18 01:41:28] com.shou6.utils.exception.exceptionhandler.resolveexception(54) | spring异常捕获顶层
org.springframework.web.servlet.mvc.multiaction.nosuchrequesthandlingmethodexception: no matching handler method found for servlet request: path '/server.do', method 'get', parameters map[[empty]]
at org.springframework.web.servlet.mvc.annotation.annotationmethodhandleradapter$servlethandlermethodresolver.resolvehandlermethod(annotationmethodhandleradapter.java:679)
at org.springframework.web.servlet.mvc.annotation.annotationmethodhandleradapter.invokehandlermethod(annotationmethodhandleradapter.java:441)
at org.springframework.web.servlet.mvc.annotation.annotationmethodhandleradapter.handle(annotationmethodhandleradapter.java:434)
at org.springframework.web.servlet.dispatcherservlet.dodispatch(dispatcherservlet.java:943)
at org.springframework.web.servlet.dispatcherservlet.doservice(dispatcherservlet.java:877)
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:292)
at org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:207)
at org.apache.tomcat.websocket.server.wsfilter.dofilter(wsfilter.java:52)
at org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:240)
at org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:207)
at com.shou6.filter.requestattributefilter.dofilter(requestattributefilter.java:28)
at org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:240)
at org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:207)
at org.springframework.web.filter.characterencodingfilter.dofilterinternal(characterencodingfilter.java:88)
at org.springframework.web.filter.onceperrequestfilter.dofilter(onceperrequestfilter.java:107)
at org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:240)
at org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:207)
at org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:212)
at org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:94)
at org.apache.catalina.authenticator.authenticatorbase.invoke(authenticatorbase.java:504)
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.remoteipvalve.invoke(remoteipvalve.java:676)
at org.apache.catalina.valves.abstractaccesslogvalve.invoke(abstractaccesslogvalve.java:620)
at org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:88)
at org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:502)
at org.apache.coyote.http11.abstracthttp11processor.process(abstracthttp11processor.java:1132)
at org.apache.coyote.abstractprotocol$abstractconnectionhandler.process(abstractprotocol.java:684)
at org.apache.tomcat.util.net.nioendpoint$socketprocessor.dorun(nioendpoint.java:1533)
at org.apache.tomcat.util.net.nioendpoint$socketprocessor.run(nioendpoint.java:1489)
at java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1142)
at java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:617)
at org.apache.tomcat.util.threads.taskthread$wrappingrunnable.run(taskthread.java:61)
at java.lang.thread.run(thread.java:745)
经过排查发现请求的url-server.do后面没有跟参数导致的，于是做了如下操作：
在filter中加判断
if ("".equals(request.getparameter("method")) || request.getparameter("method") == null) {
// return json4map(jsonmap, null, "请求参数错误 ", statuscode_failed_server);
response.getwriter().write("request parameter error");
return;
}
这样就不会报错了。
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