spring - How to show all controllers and mappings in a view

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spring - How to show all controllers and mappings in a view

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

I have a none standard Spring MVC project. Responding with XMLs. Is it possible to create a view (jsp page) showing all controllers, mappings and parameters that are accepted (required and not).

Based on answer,I have:

@RequestMapping(value= "/endpoints", params="secure",  method = RequestMethod.GET)
public @ResponseBody
String getEndPointsInView() {
    String result = "";
    for (RequestMappingInfo element : requestMappingHandlerMapping.getHandlerMethods().keySet()) {

        result += "<p>" + element.getPatternsCondition() + "<br>";
        result += element.getMethodsCondition() + "<br>";
        result += element.getParamsCondition() + "<br>";
        result += element.getConsumesCondition() + "<br>";
    }
    return result;
}

I don't get any information from @RequestParam

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1 Answer

深蓝 · Answer 1 · 2021-10-16T23:59:16+0000

With RequestMappingHandlerMapping in Spring 3.1, you can easily browse the endpoints.

The controller :

@Autowire
private RequestMappingHandlerMapping requestMappingHandlerMapping;

@RequestMapping( value = "endPoints", method = RequestMethod.GET )
public String getEndPointsInView( Model model )
{
    model.addAttribute( "endPoints", requestMappingHandlerMapping.getHandlerMethods().keySet() );
    return "admin/endPoints";
}

The view :

<%@ page session="false" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

<html>
<head><title>Endpoint list</title></head>
<body>
<table>
  <thead>
  <tr>
    <th>path</th>
    <th>methods</th>
    <th>consumes</th>
    <th>produces</th>
    <th>params</th>
    <th>headers</th>
    <th>custom</th>
  </tr>
  </thead>
  <tbody>
  <c:forEach items="${endPoints}" var="endPoint">
    <tr>
      <td>${endPoint.patternsCondition}</td>
      <td>${endPoint.methodsCondition}</td>
      <td>${endPoint.consumesCondition}</td>
      <td>${endPoint.producesCondition}</td>
      <td>${endPoint.paramsCondition}</td>
      <td>${endPoint.headersCondition}</td>
      <td>${empty endPoint.customCondition ? "none" : endPoint.customCondition}</td>
    </tr>
  </c:forEach>
  </tbody>
</table>
</body>
</html>

You can also do this with Spring < 3.1, with DefaultAnnotationHandlerMapping instead of RequestMappingHandlerMapping. But you won't have the same level of information.

With DefaultAnnotationHandlerMapping you will only have the endpoints path, without information about their methods, consumes, params...

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