利用RequestMappingHandlerMapping提取Spring MVC @RequestMapping

Spring MVC 映射注入类继承结构

/**
* Return a map with all handler methods and their mappings.
*/
public Map<T, HandlerMethod> getHandlerMethods() {
return Collections.unmodifiableMap(this.handlerMethods);
}

package com.zokapper.configration;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;

@Configuration
public class RequestMappingHandlerConfig{
@Bean
public RequestMappingHandlerMapping requestMappingHandlerMapping() {
RequestMappingHandlerMapping mapping = new RequestMappingHandlerMapping();
return mapping;
}
}

编写测试类测试

package com.zokapper.configuration;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.stereotype.Controller;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.mvc.method.RequestMappingInfo;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;

import com.zokapper.configuration.RequestMappingHandlerConfig;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {  "classpath:applicationContext-[MVC].xml","classpath:applicationContext.xml"})
public class RequestMappingHandlerConfigTest {

@Autowired
RequestMappingHandlerConfig requestMappingHandlerConfig;

//Spring MVC 提取注解中URL映射
@Test
public void detectHandlerMethods(){
final RequestMappingHandlerMapping requestMappingHandlerMapping = requestMappingHandlerConfig.requestMappingHandlerMapping ();
Map<RequestMappingInfo, HandlerMethod> map = requestMappingHandlerMapping.getHandlerMethods();

Set<RequestMappingInfo> mappings = map.keySet();
Map<String, String> reversedMap = new HashMap<String, String>();
for(RequestMappingInfo info : mappings) {
HandlerMethod method = map.get(info);
System.out.println (method.toString()+"===>"+info.getPatternsCondition().toString());
}
}
}