spring call controller junit

package com.sunrun.service;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;

import com.alibaba.fastjson.JSONObject;
import com.sunrun.mpos.common.utils.HttpClientUtils;
import com.sunrun.test.base.AbstractContextControllerTests;
import static org.junit.Assert.fail;  
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
//public class WithholdingRestTest extends AbstractContextControllerTests{
@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration  
@ContextConfiguration(locations = { "classpath:config/service-*.xml"})  
public class WithholdingRestTest {

	
	@Autowired
	private WebApplicationContext wac;
	private MockMvc mockMvc;
	
	private String json ="{\"entId\":1234,\"userId\":1235,\"key\":\"new\"}";  
	String URI = "http://127.0.0.1:8080/withholding-transaction/withholding/sendorder.do"; 
	
	@Before 
	public void setup() {
		this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac).build();
	}
	
	@Test
	public void suppose_call_service() throws Exception {
		
		
		this.mockMvc.perform(  
	                get(URI, "json").characterEncoding("UTF-8")  
	                    .contentType(MediaType.APPLICATION_JSON)  
	                    .content(json.getBytes()));  
	}


	@Test
	public void suppose_call_service_alibabaJson() throws Exception {
		
		JSONObject obj = new JSONObject();
		obj.put("a", "1");
	 
	}

	
	@Test
	public void suppose_httpclient_post(){
		
		try {
		//	HttpClientUtils.requestByPostJSON(URI, json);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}   
		
	}

}