如何在Spring MVC中请求完整的查询字符串？
在Spring MVC中，我可以这样做以获取查询字符串上的项值：
public void sendMessage(HttpServletResponse response, @RequestParam("Session Id") String sessionId, 但是如何将完整的查询字符串作为一个长字符串？ 即我不想要它的个别参数，我想要整个事情？
非常感谢！
将HttpServletRequest作为参数添加到方法中，并从请求中获取查询字符串：
public void sendMessage(HttpServletRequest request, HttpServletResponse response { String queryString = request.getQueryString(); }
你需要这样做：
public void sendMessage(HttpServletResponse response, @RequestParam("Session Id") String sessionId, HttpServletRequest request,.. { String qString= request.getQueryString();
如果您不想在控制器中使用HttpServletRequest，则可以创建解析查询字符串的HandlerMethodArgumentResolver。
例：
@Retention(RetentionPolicy.RUNTIME) @Target(ElementType.PARAMETER) public @interface QueryString { } public class QueryStringResolver implements HandlerMethodArgumentResolver { @Override public boolean supportsParameter(MethodParameter parameter) { Annotation[] parameterAnnotations = parameter.getParameterAnnotations(); for (Annotation parameterAnnotation : parameterAnnotations) { if (QueryString.class.isInstance(parameterAnnotation)) { return true; } } return false; } @Override public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception { HttpServletRequest request = webRequest.getNativeRequest(HttpServletRequest.class); return request.getQueryString(); } } public class MyController { @RequestMapping(...) public String someMethod(@QueryString String queryString) { ... } }
Controller本身知道整个查询字符串的内容。
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception
然后，您可以从以下位置获取完整查询字符串
request.getQueryString();