CloseableHttpResponse

最近在使用Apache的httpclient的时候,maven引用了最新版本4.3,发现Idea提示DefaultHttpClient等常用的类已经不推荐使用了,之前在使用4.2.3版本的时候,还没有被deprecated。去看了下官方文档,确实不推荐使用了,点击此处详情

  • DefaultHttpClient —> CloseableHttpClient
  • HttpResponse —> CloseableHttpResponse

官方给出了新api的样例,如下。

Get方法:

    CloseableHttpClient httpclient = HttpClients.createDefault();
    HttpGet httpGet = new HttpGet("http://targethost/homepage");
    CloseableHttpResponse response1 = httpclient.execute(httpGet);
    // The underlying HTTP connection is still held by the response object
    // to allow the response content to be streamed directly from the network socket.
    // In order to ensure correct deallocation of system resources
    // the user MUST either fully consume the response content  or abort request
    // execution by calling CloseableHttpResponse#close().
    //建立的http连接,仍旧被response1保持着,允许我们从网络socket中获取返回的数据
    //为了释放资源,我们必须手动消耗掉response1或者取消连接(使用CloseableHttpResponse类的close方法)

    try {
        System.out.println(response1.getStatusLine());
        HttpEntity entity1 = response1.getEntity();
        // do something useful with the response body
        // and ensure it is fully consumed
        EntityUtils.consume(entity1);
    } finally {
        response1.close();
    }

Post方法:

    HttpPost httpPost = new HttpPost("http://targethost/login");
    //拼接参数
    List <NameValuePair> nvps = new ArrayList <NameValuePair>();
    nvps.add(new BasicNameValuePair("username", "vip"));
    nvps.add(new BasicNameValuePair("password", "secret"));
    httpPost.setEntity(new UrlEncodedFormEntity(nvps));
    CloseableHttpResponse response2 = httpclient.execute(httpPost);

    try {
        System.out.println(response2.getStatusLine());
        HttpEntity entity2 = response2.getEntity();
        // do something useful with the response body
        // and ensure it is fully consumed
        //消耗掉response
        EntityUtils.consume(entity2);
    } finally {
        response2.close();
    }

再往下看HttpClients的源码,具体的实现都在HttpClientBuilderbuild方法中,有兴趣的可以去apache看源码。

    /**
    * Creates {@link CloseableHttpClient} instance with default
    * configuration.
    */
    public static CloseableHttpClient createDefault() {
        return HttpClientBuilder.create().build();
    }


开发环境:Maven3.3.9

   IDEA2016.2.1

[java]  view plain  copy
  1. import net.sf.json.JSONArray;  
  2. import net.sf.json.JSONObject;  
  3. import org.apache.http.HttpEntity;  
  4. import org.apache.http.HttpResponse;  
  5. import org.apache.http.client.methods.HttpGet;  
  6. import org.apache.http.impl.client.CloseableHttpClient;  
  7. import org.apache.http.impl.client.HttpClientBuilder;  
  8. import org.apache.http.util.EntityUtils;  
  9.   
  10. import java.io.IOException;  
  11. import java.util.ArrayList;  
  12. import java.util.List;  
  13.   
  14. /** 
  15.  * Created by 清水66 on 2017/8/28. 
  16.  */  
  17. public class JsonGet {  
  18.     public static void main(String[] args){  
  19.         //创建HttpClientBuilder  
  20.         HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();  
  21.         //HttpClient  
  22.         CloseableHttpClient closeableHttpClient = httpClientBuilder.build();  
  23.         HttpGet httpGet = new HttpGet("http://android.myapp.com/myapp/app/comment.htm?apkName=com.youcash.ZYWallet&apkCode=157&p=1&fresh=0.02709822286851704&contextData=");  
  24.         System.out.println(httpGet.getRequestLine());  
  25.         try {  
  26.             //执行get请求  
  27.             HttpResponse httpResponse = closeableHttpClient.execute(httpGet);  
  28.             //获取响应消息实体  
  29.             HttpEntity entity = httpResponse.getEntity();  
  30.             //响应状态  
  31.             System.out.println("status:" + httpResponse.getStatusLine());  
  32.             //判断响应实体是否为空  
  33.             if (entity != null) {  
  34.                 System.out.println("contentEncoding:" + entity.getContentEncoding());  
  35.                 parseJsonGet(EntityUtils.toString(entity));  
  36.             }  
  37.         } catch (IOException e) {  
  38.             e.printStackTrace();  
  39.         } finally {  
  40.             try {                //关闭流并释放资源  
  41.                 closeableHttpClient.close();  
  42.             } catch (IOException e) {  
  43.                 e.printStackTrace();  
  44.             }  
  45.         }  
  46.     }  
  47.     //解析Json数据  
  48.     public static void parseJsonGet(String jsonString){  
  49.         JSONObject jsonObject = JSONObject.fromObject(jsonString);  
  50.         //AppCommentsData类,存放评论的作者、评论内容等  
  51.         List<AppCommentsData> list = new ArrayList<AppCommentsData>();  
  52.         JSONObject obj= jsonObject.getJSONObject("obj");  
  53.         //商品评论信息  
  54.         JSONArray jsonArray = obj.getJSONArray("commentDetails");  
  55.         for(int i =0;i<jsonArray.size();i++){  
  56.             AppCommentsData appCommentsData = new AppCommentsData();  
  57.             appCommentsData.setApp_id(1);  
  58.             appCommentsData.setStore_id(1011);  
  59.             //评论作者  
  60.             appCommentsData.setAuthor(jsonArray.getJSONObject(i).getString("nickName"));  
  61.             //商品评论内容  
  62.             appCommentsData.setData(jsonArray.getJSONObject(i).getString("content"));  
  63.             //评分  
  64.             appCommentsData.setScore(jsonArray.getJSONObject(i).getInt("score"));  
  65.             list.add(appCommentsData);  
  66.         }  
  67.         System.out.println("输出appCommentsData//");  
  68.         for (int i=0;i<list.size();i++){  
  69.             AppCommentsData appCommentsData = list.get(i);  
  70.             System.out.println("name: ="+appCommentsData.getAuthor());  
  71.             System.out.println("content: ="+appCommentsData.getData());  
  72.             System.out.println("score: ="+appCommentsData.getScore());  
  73.         }  
  74.     }  
  75. }  
类AppCommentsData如下:

[html]  view plain  copy
  1. /**  
  2.  * Created by 清水66 on 2017/8/22.  
  3.  */  
  4. public class AppCommentsData {  
  5.     int id;  
  6.     int app_id;//app的id  
  7.     int store_id;//应用商店id  
  8.     String author;//评论人  
  9.     int score;//评分  
  10.     String  data;//评论内容  
  11.     //生成getter.setter方法  
  12. }  
注意;1)在获取评论内容时,并把评论内容插入MySQL数据库时,由于评论内容有表情符号会报 Incorrect string value: '\xF0\x9F\x98\xAD",...'  错误,

2)网络上建议把UTF-8改为utf8mb4,但是尝试了几个帖子上的操作没有成功,

        3)本人把评论内容的表情去掉插入数据库中了

[java]  view plain  copy
  1. String content = jsonArray.getJSONObject(i).getString("content").replaceAll("[\\x{10000}-\\x{10FFFF}]""");  
  2.             appCommentsData.setData(content);  

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package windows; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import java.security.MessageDigest; import java.util.ArrayList; import java.util.Arrays; import java.util.HashSet; import java.util.List; import java.util.Set; import java.util.Vector; import org.apache.http.Header; import org.apache.http.HttpEntity; import org.apache.http.NameValuePair; import org.apache.http.client.ClientProtocolException; 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.client.params.ClientPNames; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.message.BasicNameValuePair; import org.apache.http.protocol.HTTP; import org.apache.http.util.EntityUtils; /** * 核心功能封装类 * @author 冯晋强 * */ public class TmoocOperate { static String sessionid; static CloseableHttpResponse response = null; static CloseableHttpClient httpclient = null; //静态块 static{ // 创建提交数据对象 httpclient = HttpClients.createDefault(); } /** * 处理在线疑答贴子列表源码数据 * @author 刑保政 */ public static String[][] splist(String Str) { Str = Str.substring(Str.lastIndexOf("<ul>") + 4, Str.lastIndexOf("</ul>")).replaceAll("\\s", ""); String[] lis = Str.split("</li>");// 所有记录的数组 String[] jilu = null;// 单条记录的数组 String[][] allMsg = new String[lis.length - 1][4]; // 创建一个二维数组保存处理后的数据,其中每个一维数组中包含一个记录,每个二维数组中包含每条数据的信息 // allMsg[i][0]:标题; allMsg[i][1]:时间 allMsg[2]:处理状态 for (int i = 0; i < lis.length - 1; i++) {// 遍历所有记录,取出每一条记录 String ss = lis[i];// 取出每一条记录 jilu = ss.split("(</a></span>|</span>)"); // 每条记录分割成3部分 jilu[0]:标题 jilu[2]:时间 jilu[3]:处理状态 for (int j = 0; j < jilu.length; j++) {// 由于数据中还含有部分额外代码,遍历所有记录筛选数据 String msg = jilu[j];// 单条记录中的每一个数据 System.out.println(msg); msg = msg.substring(msg.lastIndexOf(">") + 1, msg.length()); String uid = jilu[0].substring(jilu[0].lastIndexOf("(") + 1, jilu[0].lastIndexOf(")")); allMsg[i][j] = msg; allMsg[i][3] = uid; } } return allMsg; } /** * 处理在线疑答帖子内容源码数据 * @author 刑保政 */ public static String[] splist1(String all) { String queStr = all.substring(all.indexOf("<div class=\"quesdetail\""),all.indexOf("<div id=\"answers\"")); // .replaceAll("\\s","");//处理源码筛选字符串,只获取含有问题标题的内容 // System.out.println(queStr);//测试标题部分字符串 String[] queArr = queStr.split("(</span|</pre|</div>)"); for(int i=0;i<queArr.length;i++){ String msg = queArr[i]; msg = msg.substring(msg.lastIndexOf(">")+1, msg.length()); if(i == 5){ msg = msg.substring(msg.indexOf(":")+1).trim(); } queArr[i] = msg; } String[] que = new String[4];//保存最终标题内容的数组 que[0] = queArr[1]; que[1] = queArr[3]; que[2] = queArr[4]; que[3] = queArr[5]; for(int i=0;i<2;i++){ que[i] = que[i].replaceAll("<","<"); que[i] = que[i].replaceAll(">",">"); que[i] = que[i].replaceAll(" "," "); que[i] = que[i].replaceAll("&","&"); que[i] = que[i].replaceAll(""","\""); que[i] = que[i].replaceAll("©","@"); que[i] = que[i].replaceAll("®","商标"); } return que; } // 回复帖子方法包 public static boolean SetTitle1(String message,String uid) { try { // url提交地址 HttpPost httpPost = new HttpPost("http://tts8.tmooc.cn/onlinefaq/anwser"); // 组合数据包 List<NameValuePair> nvps = new ArrayList<NameValuePair>(); nvps.add(new BasicNameValuePair("questionId", uid)); nvps.add(new BasicNameValuePair("context", message)); // 设置数据包 httpPost.setEntity(new UrlEncodedFormEntity(nvps,HTTP.UTF_8)); // 提交数据包 response = httpclient.execute(httpPost); // 读取返回数据信息 String str = EntityUtils.toString(response.getEntity()); System.out.println(str); if(str.indexOf("true")!=-1){ return true; }else{ return false; } } catch (ClientProtocolException e) { System.out.println("数据包提交失败"); e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return false; } // 发送帖子方法包 public static boolean SetTitle(String tilte, String message) { try { // url提交地址 HttpPost httpPost = new HttpPost("http://tts8.tmooc.cn/onlinefaq/add"); // 组合数据包 List<NameValuePair> nvps = new ArrayList<NameValuePair>(); nvps.add(new BasicNameValuePair("title", tilte)); nvps.add(new BasicNameValuePair("context", message)); // 设置数据包 httpPost.setEntity(new UrlEncodedFormEntity(nvps,HTTP.UTF_8)); // 提交数据包 response = httpclient.execute(httpPost); // 读取返回数据信息 String str = EntityUtils.toString(response.getEntity()); System.out.println(str); if(str.indexOf("true")!=-1){ return true; }else{ return false; } } catch (ClientProtocolException e) { System.out.println("数据包提交失败"); e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return false; } /** * * @author 刑保政 */ public static Vector<Vector<String>> getAite(Vector<Vector<String>> vvs){ /** 保存所有姓名的集合,因为回帖人中有重复数据,所以这里用Set去除重复 */ Set<String> usersSet = new HashSet<String>(); /** 保存所有回帖内容的集合 */ List<String> texts = new ArrayList<String>(); /* 遍历回帖集合,分别取出每一条记录中的回帖人和回帖内容,并添加到 * 对应的集合中,方便下一步遍历筛选 */ for(int i=0;i<vvs.size();i++){ Vector<String> v = vvs.get(i); String user = v.get(1); String text = v.get(3); usersSet.add(user); texts.add(text); } // System.out.println(users);//测试回帖人集合 // System.out.println(texts);//测试回帖内容集合 String[] users = new String[usersSet.size()]; usersSet.toArray(users);//将usersSet回帖人集合转为数组方便遍历 // System.out.println(Arrays.toString(users));//测试回帖人数组 /* 遍历回帖人数组,取出每一个回帖人, * 遍历每一条回帖内容,判断内容是否以@+回帖人开头,(当前设置@只能在开头有用,中间的不予考虑) * 若是则提取该回帖人并添加到当前楼层集合中 */ for(int i=0;i<users.length;i++){ String user = users[i]; for(int j=0;j<texts.size();j++){ String text = texts.get(j); if(text.startsWith("@" + user)){ // System.out.println(text); vvs.get(j).add("@" + user); } } } return vvs;//将处理后的集合返回 } /** * * @author 刑保政 */ public static Vector<Vector<String>> getAnswer(String all){ all = all.substring(all.indexOf("<div id=\"answers\""), all.indexOf("<div id=\"appendQues\"")); //抽取数据片段(答案部分) // System.out.println(all); String[] ansArr = all.split("<div class=\"answer");//分割成存储单条回帖的数组 String[] answer = null;//每一条回帖数组 Vector<Vector<String>> vvs = new Vector<Vector<String>>();//创建二维集合保存信息 /* * 遍历回帖集合,取出每一条回帖记录,分割成一组回帖信息元素, * 进行处理后添加进二维集合 */ for(int i = 1;i<ansArr.length;i++){ String ansStr = ansArr[i]; answer = ansStr.split("(</span>|</pre>)"); vvs.add(new Vector<String>()); vvs.get(i-1).add(i + "");//楼层数 for(int j=0;j<answer.length-1;j++){//处理每条回帖的信息 String msg = answer[j].trim(); msg = msg.substring(msg.lastIndexOf(">")+1,msg.length()).trim(); if(j == 1){//对时间单独进行处理一下 msg = msg.substring(msg.indexOf("(")+1,msg.length()-1).trim(); } vvs.get(i-1).add(msg);//添加进二维集合 } } vvs = getAite(vvs); return vvs; } // 读取在线疑答帖子内容源码数据 public static String Get_title(String uid) { try { // url提交地址 HttpGet httpGet = new HttpGet("http://tts8.tmooc.cn/onlinefaq/detail/"+ uid); // 提交数据包 response = httpclient.execute(httpGet); // 取出cookie System.out.println(response.getFirstHeader("Cookie")); // 读取返回数据信息 String str = EntityUtils.toString(response.getEntity()); return str; } catch (ClientProtocolException e) { System.out.println("数据包提交失败"); e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return null; } // 读取在线疑答帖子列表源码数据 public static String Get_tilte() { try { // url提交地址 HttpGet httpGet = new HttpGet("http://tts8.tmooc.cn/onlinefaq/questionList"); // 提交数据包 response = httpclient.execute(httpGet); System.out.println("第七次请求成功"); // 读取返回数据信息 String str = EntityUtils.toString(response.getEntity()); return str; } catch (ClientProtocolException e) { System.out.println("数据包提交失败"); e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return null; } // 初始化登陆,判断是否需要登陆验证码 暂时未完善 public static void GetCode(String user) { CloseableHttpClient httpclient = null; CloseableHttpResponse response2 = null; try { // url提交地址 HttpPost httpPost = new HttpPost("http://tmooc.cn/login/loginTimes"); // 组合数据包 List<NameValuePair> nvps = new ArrayList<NameValuePair>(); nvps.add(new BasicNameValuePair("login_name", user)); // 设置数据包 httpPost.setEntity(new UrlEncodedFormEntity(nvps)); // 创建提交数据对象 httpclient = HttpClients.createDefault(); // 提交数据包 response2 = httpclient.execute(httpPost); // 读取返回数据信息 String str = EntityUtils.toString(response2.getEntity()); System.out.println(str); TmoocOperate.SetTitle("今天的表示没怎么听懂", "你们呢。。。"); } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { try { response2.close(); httpclient.close(); } catch (IOException e) { e.printStackTrace(); } } } // 登陆Tmooc方法 public static boolean Tmooc_Login(String user, String pass) { try { // url提交地址 HttpPost httpPost = new HttpPost("http://tmooc.cn/login"); // 组合数据包 List<NameValuePair> nvps = new ArrayList<NameValuePair>(); nvps.add(new BasicNameValuePair("login_name", user)); nvps.add(new BasicNameValuePair("password", Login_MD5(pass).toLowerCase())); nvps.add(new BasicNameValuePair("type", "P")); nvps.add(new BasicNameValuePair("uuid","E1CC4286A419C899CCBF6A04E5A1CF02")); // 设置数据包 httpPost.setEntity(new UrlEncodedFormEntity(nvps)); // 提交数据包 response = httpclient.execute(httpPost); // 读取返回数据信息 String str = EntityUtils.toString(response.getEntity()); //判断是否登陆成功 if (str.indexOf(user) != -1) { sessionid = str.substring(14, str.indexOf("|P#")); // 取出cookie方法 这里用不到 //Cookie = response2.getFirstHeader("Set-Cookie").toString(); // url提交地址 HttpGet httpGet = new HttpGet("http://tmooc.cn/login/hadlogin/"+ sessionid); // 提交数据包 response = httpclient.execute(httpGet); // url提交地址 httpGet = new HttpGet("http://tts8.tmooc.cn/user/myTTS?sessionId=" + sessionid + "&date="); // 提交数据包 response = httpclient.execute(httpGet); return true; } } catch (UnsupportedEncodingException e) { System.out.println("设置数据包出错"); e.printStackTrace(); } catch (ClientProtocolException e) { System.out.println("提交数据异常"); e.printStackTrace(); } catch (IOException e) { System.out.println("其他错误"); e.printStackTrace(); } return false; } //utf-8编码 public static String bm_utf8(String Str){ String bmjg = null; try { bmjg = URLEncoder.encode(Str, "UTF-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return bmjg; } // 登陆tmooc时md5加密方法 public final static String Login_MD5(String s) { char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; try { byte[] btInput = s.getBytes(); // 获得MD5摘要算法的 MessageDigest 对象 MessageDigest mdInst = MessageDigest.getInstance("MD5"); // 使用指定的字节更新摘要 mdInst.update(btInput); // 获得密文 byte[] md = mdInst.digest(); // 把密文转换成十六进制的字符串形式 int j = md.length; char str[] = new char[j * 2]; int k = 0; for (int i = 0; i < j; i++) { byte byte0 = md[i]; str[k++] = hexDigits[byte0 >>> 4 & 0xf]; str[k++] = hexDigits[byte0 & 0xf]; } return new String(str); } catch (Exception e) { e.printStackTrace(); return null; } } }

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