對於長字符串缺少Spring post請求參數

Question

我的Spring控制器中有一個post方法，它接受一個名爲wkt的請求參數。這裏是我的方法簽名：

@RequestMapping(value="/getNumberOfProperties", method=RequestMethod.POST) 
public String getEstimateForNumberOfProperties(@RequestParam("wkt") String wkt) { 
    //code 
} 

在我的jQuery中，我打電話這樣的方法。

$.post(webroot + "/project/getNumberOfProperties", {wkt : wktGeomFromServer}) 

This works great。然而，我得到這個太長的字符串錯誤。

org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'wkt' is not present 
at org.springframework.web.method.annotation.RequestParamMethodArgumentResolver.handleMissingValue(RequestParamMethodArgumentResolver.java:255) ~[spring-web-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at org.springframework.web.method.annotation.AbstractNamedValueMethodArgumentResolver.resolveArgument(AbstractNamedValueMethodArgumentResolver.java:95) ~[spring-web-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:79) ~[spring-web-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:157) ~[spring-web-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:124) ~[spring-web-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) ~[spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) ~[spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:690) ~[spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) ~[spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) [servlet-api.jar:?] 
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) [spring-webmvc-4.0.2.RELEASE.jar:4.0.2.RELEASE] 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) [servlet-api.jar:?] 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) [catalina.jar:7.0.41] 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) [catalina.jar:7.0.41] 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) [spring-security-web-3.2.1.RELEASE.jar:3.2.1.RELEASE] 

那麼多久太久了？在做了一些測試後，我發現如果字符串的長度是1,971,324 or less一切正常。否則，我會得到上述例外。我不知道這是Spring還是tomcat等。另外，我已經通過Chrome驗證過，無論長度如何，wkt參數都會在所有情況下發送。所以當Spring的錯誤信息太長時，對我來說沒有多大意義。 1,971,324某處有些神奇數字嗎？

有什麼建議嗎？

Answer 1

它可能是服務器配置問題？例如，默認情況下，Tomcat的最大發布請求內容大小爲2MB。