java 发送微信客服消息

package com.baosight.wechat.service;

import net.sf.json.JSONObject;

import org.apache.commons.httpclient.HttpStatus;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.junit.Test;

import com.baosight.wechat.project.baosightecmp.ConstantUtilEcmp;
import com.baosight.wechat.util.HttpUtil;

public class TestUnit
{

	@Test
	public void Test1()
	{

		String Access_token = HttpUtil.getAccess_token_server(ConstantUtilEcmp.APPID, ConstantUtilEcmp.APPSECRET);
		// String open_id = "oe7rSjlz1flhx7HP3-DnlgrpobqM";
		JSONObject obj = JSONObject.fromObject(Access_token);
		String token = obj.getString("access_token");
		String strJson = "{\"touser\" :\"oe7rSjlz1flhx7HP3-DnlgrpobqM\",";
		strJson += "\"msgtype\":\"text\",";
		strJson += "\"text\":{";
		strJson += "\"content\":\"Hello World\"";
		strJson += "}}";
		String url = "https://api.weixin.qq.com/cgi-bin/message/custom/send?&body=0&access_token=" + token;

		System.out.println(url);
		this.post(url, strJson);
	}

	public void post(String url, String json)
	{
		DefaultHttpClient client = new DefaultHttpClient();
		HttpPost post = new HttpPost(url);
		try
		{
			StringEntity s = new StringEntity(json);
			s.setContentEncoding("UTF-8");
			s.setContentType("application/json");
			post.setEntity(s);

			HttpResponse res = client.execute(post);
			if (res.getStatusLine().getStatusCode() == HttpStatus.SC_OK)
			{
				HttpEntity entity = res.getEntity();
				System.out.println(EntityUtils.toString(entity, "utf-8"));
			}
		}
		catch (Exception e)
		{
			throw new RuntimeException(e);
		}
	}

}