junit针对spring mvc三层测试

package com.test.controller; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.junit.BeforeClass; import org.springframework.mock.web.MockServletContext; import org.springframework.web.context.WebApplicationContext; import org.springframework.web.context.support.XmlWebApplicationContext; import org.springframework.web.servlet.HandlerAdapter; import org.springframework.web.servlet.HandlerExecutionChain; import org.springframework.web.servlet.HandlerMapping; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter; import org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping; public class JUnitControllerBase { private static HandlerMapping handlerMapping; private static HandlerAdapter handlerAdapter; //重点 @BeforeClass public static void setUp() { if (handlerMapping == null) { String[] configs = {"file:WebContent/WEB-INF/conf/applicationContext.xml","file:WebContent/WEB-INF/spring-servlet.xml"}; XmlWebApplicationContext context = new XmlWebApplicationContext(); context.setConfigLocations(configs); MockServletContext msc = new MockServletContext(); context.setServletContext(msc); context.refresh(); msc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, context); handlerMapping = (HandlerMapping)context.getBean(DefaultAnnotationHandlerMapping.class); handlerAdapter = (HandlerAdapter)context.getBean(context.getBeanNamesForType(AnnotationMethodHandlerAdapter.class)[0]); } } public ModelAndView excuteController(HttpServletRequest request, HttpServletResponse response) throws Exception { HandlerExecutionChain chain = handlerMapping.getHandler(request); final ModelAndView model = handlerAdapter.handle(request, response, chain.getHandler()); return model; } }