httpclient工具类

import java.net.URI;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Set;

import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;

/**
*

• 类: HttpClient
  

• 描述: httpclient工具类
  

• 作者: song
  

• 时间: 2017年7月21日 下午3:15:27
  */
  public class HttpClientUtil {

  static CloseableHttpClient client = null;
  static {
  client = HttpClients.createDefault();
  }

  /**

  • 方法: get
    
  • 描述: get请求
    
  • 作者: Teacher song
    
  • 时间: 2017年7月21日 下午3:15:25
  • @param url
  • @param params
  • @return
  • @throws Exception
    */
    public static String get(String url,HashMap<String, Object> params){
    try {
    HttpGet httpGet = new HttpGet();
    Set keySet = params.keySet();
    StringBuffer stringBuffer = new StringBuffer();
    stringBuffer.append(url).append("?t=").append(System.currentTimeMillis());
    for (String key : keySet) {
    stringBuffer.append("&").append(key).append("=").append(params.get(key));
    }
    httpGet.setURI(new URI(stringBuffer.toString()));
    CloseableHttpResponse execute = client.execute(httpGet);
    int statusCode = execute.getStatusLine().getStatusCode();
    if (200 != statusCode) {
    return “”;
    }
    return EntityUtils.toString(execute.getEntity(), “utf-8”);
    }catch (Exception e) {
    e.printStackTrace();
    return null;
    }
    }

  /**

  • 方法: post
    
  • 描述: post请求
    
  • 作者: Teacher song
    
  • 时间: 2017年7月21日 下午3:20:31
  • @param url
  • @param params
  • @return
  • @throws Exception
    /
    public static String post(String url,HashMap<String, Object> params) {
    try {
    HttpPost httpPost = new HttpPost();
    httpPost.setURI(new URI(url));
    List parameters = new ArrayList();
    Set keySet = params.keySet();
    for (String key : keySet) {
    NameValuePair e = new BasicNameValuePair(key, params.get(key).toString());
    parameters.add(e);
    }
    HttpEntity entity = new UrlEncodedFormEntity(parameters , “utf-8”);
    httpPost.setEntity(entity);
    CloseableHttpResponse execute = client.execute(httpPost);
    int statusCode = execute.getStatusLine().getStatusCode();
    if (200 != statusCode) {
    return “”;
    }
    return EntityUtils.toString(execute.getEntity(), “utf-8”);
    }catch (Exception e) {
    e.printStackTrace();
    return null;
    }
    }
    //天气接口
    / public static void main(String[] args) {
    String url = “http://t.weather.sojson.com/api/weather/city/101030100”;
    HashMap<String, Object> params = new HashMap<>();
    String string = get(url, params );
    //System.out.println(string);
    JSONObject repdate = JSON.parseObject(string);
    JSONObject data = repdate.getJSONObject(“data”);
    JSONArray forecast = data.getJSONArray(“forecast”);
    JSONObject jsonObject = forecast.getJSONObject(0);
    String high = jsonObject.getString(“high”);
    System.out.println(high);
    }*/
    //发送短信接口
    /public static void main(String[] args) {
    String url = CommonCanstant.SEND_MSG_URL;
    HashMap<String, Object> params = new HashMap<>();
    params.put(“accountSid”, CommonCanstant.SEND_MSG_ACCOUNT_ID);//开发者主账号ID
    params.put(“to”,“这里输手机号”);//短信接收端手机号码集合
    String time = TimeUtil.format(new Date());
    params.put(“timestamp”,time);//时间戳
    String sigStr = CommonCanstant.SEND_MSG_ACCOUNT_ID+CommonCanstant.SEND_MSG_TOKEN+time;
    params.put(“sig”,Md5Util.getMd532(sigStr));//签名。MD5(ACCOUNT SID + AUTH TOKEN + timestamp)。共32位（小写）
    params.put(“templateid”, “1116707112”);//短信模板ID
    params.put(“param”, “123456”);//短信模板ID
    String post = post(url, params );
    System.out.println(post);
    }/
    //群发短信
    public static long code(String phone) {
    // String url = CommonCanstant.SEND_MSG_URL;
    // HashMap<String, Object> params = new HashMap<>();
    // params.put(“accountSid”, CommonCanstant.SEND_MSG_ACCOUNT_ID);//开发者主账号ID
    // params.put(“to”,phone);//短信接收端手机号码集合
    // String time = TimeUtil.format(new Date());
    // params.put(“timestamp”,time);//时间戳
    // String sigStr = CommonCanstant.SEND_MSG_ACCOUNT_ID+CommonCanstant.SEND_MSG_TOKEN+time;
    // params.put(“sig”,Md5Util.getMd532(sigStr));//签名。MD5(ACCOUNT SID + AUTH TOKEN + timestamp)。共32位（小写）
    // params.put(“templateid”, “1116707112”);//短信模板ID
    long str = Math.round(Math.random()*899999+100000);
    // params.put(“param”, str);//短信模板ID
    // String post = post(url, params );
    // System.out.println(post);
    return str;
    }
    //连接其他项目测试方法
    public static void main(String[] args) {
    String url=“http://localhost:8080/ssm-employee-wdd/book/queryBookType.do”;
    HashMap<String, Object> params = new HashMap<>();
    String string = get(url, params);
    JSONArray parseArray = JSONArray.parseArray(string);
    System.out.println(string);
    }
    }