后台注册环信IM账号

1、https://www.easemob.com/ 环信官网注册账号
2、创建应用

3、创建完成之后点击

会出现如下信息，其中标注的为重要信息

4、编写环信工具类HuanXinUtil

package com.fh.util;import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
import java.util.Calendar;
import java.util.Date;
import java.util.Properties;import net.sf.json.JSONObject;public class HuanXinUtil {//  private   String targetURL = "https://a1.easemob.com/1177180507177107/bit/chatrooms";private String uri = "https://a1.easemob.com/1177180507177107/bit/";private   String hx_client_id = "";private   String hx_client_Secret = "";private   String hx_access_token = "";private   long hx_token_time = 0;private static String profilepath = "WEB-INF/classes/hx_key.properties";public HuanXinUtil(){String filePath = String.valueOf(Thread.currentThread().getContextClassLoader().getResource(""))+"../../";  //项目路径filePath = filePath.replaceAll("file:/", "");filePath = filePath.replaceAll("%20", " ");filePath = filePath.trim()+profilepath;//filePath = "D://hx_key.properties";Properties properties = new Properties();try {InputStream in = new BufferedInputStream(new FileInputStream(filePath));   properties.load(in);hx_client_id = properties.getProperty("hx_client_id");hx_client_Secret = properties.getProperty("hx_client_Secret");hx_access_token = properties.getProperty("hx_access_token");hx_token_time = Long.parseLong(properties.getProperty("hx_token_time"));in.close();Date date = new Date(hx_token_time);System.out.println(date.before(new Date()));if(date.before(new Date())){hx_access_token=this.getAccessToken(hx_client_id, hx_client_Secret);Calendar now = Calendar.getInstance();   now.setTime(new Date());   now.set(Calendar.DATE, now.get(Calendar.DATE) + 5); hx_token_time =now.getTimeInMillis();FileOutputStream fileOutputStream = new FileOutputStream(filePath);properties.setProperty("hx_token_time", Long.toString(hx_token_time));properties.setProperty("hx_access_token", hx_access_token);properties.store(fileOutputStream, "update access_token");fileOutputStream.close();}} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}public String getchatroomID(String roomname){String id ="";try {URL url = new URL("https://a1.easemob.com/1177180507177107/bit/chatrooms");HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setDoOutput(true);conn.setRequestMethod("POST");conn.setRequestProperty("Content-Type", "application/json");conn.setRequestProperty("Authorization", "Bearer "+hx_access_token);String input = "{\"name\":\""+roomname+"\",\"description\":\"chatroom\",\"owner\":\"tdd123\"}";OutputStream os = conn.getOutputStream();os.write(input.getBytes());os.flush();if (conn.getResponseCode() != 200) {}else{BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));String output;StringBuffer sb = new StringBuffer();System.out.println("Output from Server .... \n");while ((output = br.readLine()) != null) {System.out.println(output);System.out.println("------");sb.append(output);}JSONObject json = JSONObject.fromObject(sb.toString());id =  JSONObject.fromObject(json.getString("data")).getString("id");}conn.disconnect();} catch (MalformedURLException e) {e.printStackTrace();} catch (ProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return id;}public int createUser(String username,String password,String nickname){int  i =0;try {URL url = new URL("https://a1.easemob.com/1177180507177107/bit/users");HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setDoOutput(true);conn.setRequestMethod("POST");conn.setRequestProperty("Content-Type", "application/json");conn.setRequestProperty("Authorization", "Bearer "+hx_access_token);String input = "{\"username\":\""+username+"\",\"password\":\""+password+"\",\"nickname\":\""+nickname+"\"}";System.out.println(input);OutputStream os = conn.getOutputStream();os.write(input.getBytes());os.flush();System.out.println(conn.getResponseCode());i =conn.getResponseCode();conn.disconnect();} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return i;}public JSONObject changeUserNickname(String username,String nickname){JSONObject json  =null;try {URL url = new URL("https://a1.easemob.com/1177180507177107/bit/users/"+username);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setDoOutput(true);conn.setRequestMethod("PUT");conn.setRequestProperty("Content-Type", "application/json");conn.setRequestProperty("Authorization", "Bearer "+hx_access_token);String input = "{\"nickname\":\""+nickname+"\"}";OutputStream os = conn.getOutputStream();os.write(input.getBytes());os.flush();if (conn.getResponseCode() != 200) {}else{BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));String output;StringBuffer sb = new StringBuffer();System.out.println("Output from Server .... \n");while ((output = br.readLine()) != null) {sb.append(output);}json = JSONObject.fromObject(sb.toString());}conn.disconnect();} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return json;}public JSONObject getHXUserInfo(String username){JSONObject json  =null;try {URL url = new URL("https://a1.easemob.com/1177180507177107/bit/users/"+username);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("GET");conn.setRequestProperty("Content-Type", "application/json");conn.setRequestProperty("Authorization", "Bearer "+hx_access_token);System.out.println(conn.getResponseCode());if (conn.getResponseCode() != 200) {}else{BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));String output;StringBuffer sb = new StringBuffer();System.out.println("Output from Server .... \n");while ((output = br.readLine()) != null) {sb.append(output);}json = JSONObject.fromObject(sb.toString());}conn.disconnect();} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return json;}public String getAccessToken(String client_id,String client_secret){String token="";try {URL url = new URL("https://a1.easemob.com/1177180507177107/bit/token");HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setDoOutput(true);conn.setRequestMethod("POST");conn.setRequestProperty("Content-Type", "application/json");String input = "{\"grant_type\":\"client_credentials\"," +"\"client_id\":\""+client_id+"\"," +"\"client_secret\":\""+client_secret+"\"}";OutputStream os = conn.getOutputStream();os.write(input.getBytes());os.flush();System.out.println(conn.getResponseCode());if (conn.getResponseCode() != 200) {}else{BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));String output;StringBuffer sb = new StringBuffer();System.out.println("Output from Server .... \n");while ((output = br.readLine()) != null) {sb.append(output);}JSONObject json = JSONObject.fromObject(sb.toString());token =  json.getString("access_token"); }conn.disconnect();} catch (MalformedURLException e) {e.printStackTrace();} catch (ProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return token;}/*** 创建聊天室* @param name  聊天室的名称(俱乐部id)* @param description   聊天室的描述* @param owner 聊天室的创建者* @return*/public String createChatRooms(String name , String description) {String id = "";try {URL url = new URL(uri + "chatrooms");HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setDoOutput(true);conn.setRequestMethod("POST");conn.setRequestProperty("Content-Type", "application/json");conn.setRequestProperty("Authorization", "Bearer "+ hx_access_token);String input = "{\"name\":\""+name+"\",\"description\":\""+description+"\"" +",\"maxusers\":\"500\",\"owner\":\"88888888\"}";System.out.println(input);OutputStream os = conn.getOutputStream();os.write(input.getBytes());os.flush();System.out.println(conn.getResponseCode());if (conn.getResponseCode() != 200) {} else {BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));String output;StringBuffer sb = new StringBuffer();System.out.println("Output from Server .... \n");while ((output = br.readLine()) != null) {sb.append(output);}System.out.println(sb.toString());JSONObject json = JSONObject.fromObject(sb.toString());id =  JSONObject.fromObject(json.getString("data")).getString("id");}conn.disconnect();} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return id;}public void addChatRooms(String clubID , String username) {try {URL url = new URL(uri + "chatrooms/"+clubID+"/users/"+username);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setDoOutput(true);conn.setRequestMethod("POST");conn.setRequestProperty("Content-Type", "application/json");conn.setRequestProperty("Authorization", "Bearer "+ hx_access_token);System.out.println(conn.getResponseCode());if (conn.getResponseCode() != 200) {} else {BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));String output;StringBuffer sb = new StringBuffer();System.out.println("Output from Server .... \n");while ((output = br.readLine()) != null) {sb.append(output);}System.out.println(sb.toString());}conn.disconnect();} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}   /*** 发送消息* @param uid  俱乐部id/接收者* @param msg   会员id/文本内容 * @param form  发送者* @return*/public int sendMessage(String uid, String msg, String form) {int i = 0;try {URL url = new URL(uri + "messages");HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setDoOutput(true);conn.setRequestMethod("POST");conn.setRequestProperty("Content-Type", "application/json");conn.setRequestProperty("Authorization", "Bearer "+ hx_access_token);// String input = "{\"username\":\"" + username +// "\",\"password\":\"" + password + "\",\"nickname\":\"" + nickname// + "\"}";String input = "{\"target_type\":\"users\",\"target\":[\"" + uid+ "\"],\"msg\":{\"type\":\"txt\"," + "\"msg\":\"" + msg+ "\"},\"form\":\"" + form + "\"}";System.out.println(input);OutputStream os = conn.getOutputStream();os.write(input.getBytes("utf-8"));os.flush();System.out.println(conn.getResponseCode());if (conn.getResponseCode() != 200) {} else {BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));String output;StringBuffer sb = new StringBuffer();System.out.println("Output from Server .... \n");while ((output = br.readLine()) != null) {sb.append(output);}System.out.println(sb.toString());}conn.disconnect();} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return i;}public static void main(String[] args) {
//      System.out.println(new HuanXinUtil().createChatRooms("f78761ea7067493fbc7725d384d2c52d","云南当康休闲健身"));
//      new HuanXinUtil().createUser("f78761ea7067493fbc7725d384d2c52d", "f78761ea7067493fbc7725d384d2c52d", "云南当康休闲健身");
//      new HuanXinUtil().sendMessage("1", "87f332cbea614da1abd4406cf159857b", "app_system");System.out.println(new HuanXinUtil().getAccessToken("YXA69Pn2MFHbEeiNfoEOzo_SXg", "YXA6XYobMFtKN0Ag78Q0rmf53kxjdtk"));}
}
... prompt'''

4、环信在java后台的配置

注意：此时的hx_client_id和hx_client_Secret是你注册完环信账号后系统分配的(上图有标注)
5、hx_access_token的获取
输入Client ID:和Client Secret:调用HuanXinUtil工具类中getAccessToken()方法获取

6、调研createUser()接口创建用户

7、查看是否成功创建用户

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后台注册环信IM账号

4、编写环信工具类HuanXinUtil

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