spring mvc 获取所有的controller跟url映射关系

有时候需要根据url反查controller，如果能获取所有的url，则不用跟据url去代码里搜了，方便开发人员、调试人员或交接人。

关键对象：RequestMappingHandlerMapping?

import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.method.HandlerMethod;import org.springframework.web.servlet.mvc.condition.PatternsRequestCondition;import org.springframework.web.servlet.mvc.condition.RequestMethodsRequestCondition;import org.springframework.web.servlet.mvc.method.RequestMappingInfo;import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;@Controllerpublic class MappingController {	@Autowired	private RequestMappingHandlerMapping requestMappingHandlerMapping;	@RequestMapping(value = "/mappings")	public String list(Model model) {		List<HashMap<String, String>> urlList = new ArrayList<HashMap<String, String>>();		Map<RequestMappingInfo, HandlerMethod> map = requestMappingHandlerMapping.getHandlerMethods();		for (Map.Entry<RequestMappingInfo, HandlerMethod> m : map.entrySet()) {			HashMap<String, String> hashMap = new HashMap<String, String>();			RequestMappingInfo info = m.getKey();			HandlerMethod method = m.getValue();			PatternsRequestCondition p = info.getPatternsCondition();			for (String url : p.getPatterns()) {				hashMap.put("url", url);			}			hashMap.put("className", method.getMethod().getDeclaringClass().getName()); // 类名			hashMap.put("method", method.getMethod().getName()); // 方法名			RequestMethodsRequestCondition methodsCondition = info.getMethodsCondition();			String type = methodsCondition.toString();			if (type != null && type.startsWith("[") && type.endsWith("]")) {				type = type.substring(1, type.length() - 1);				hashMap.put("type", type); // 方法名			}			urlList.add(hashMap);		}		model.addAttribute("list", urlList);		return "/console/system/mappingList";	}}

?然后再在页面上遍历list即可

	<table class="tableList" >	<tr>			<th>类名</th>			<th>方法名</th>			<th>URL</th>			<th>类型</th>	<tr>		<c:forEach items="${list}" var="mvc" varStatus="status">		<tr id="${status.index}">			<td>${mvc.className}</td>			<td>${mvc.method}</td>			<td>				<c:choose>				<c:when test="${!fn:contains(mvc.url,'}') and (mvc.type=='GET' or mvc.type=='')}">					<a href="${ctx}${mvc.url}" target="_blank">${mvc.url}</a>				</c:when>				<c:otherwise>${mvc.url}</c:otherwise>				</c:choose>			</td>			<td>${mvc.type}</td>		</tr>		</c:forEach>	</table>

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