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微信小程序獲取手機(jī)號(hào)，后端JAVA解密流程代碼

更新時(shí)間：2020年09月09日 08:33:14 作者：崔笑顏

這篇文章主要介紹了微信小程序獲取手機(jī)號(hào)，后端JAVA解密流程的代碼，幫助大家更好的利用Java開發(fā)，感興趣的朋友可以了解下

小程序獲取手機(jī)號(hào)，后端JAVA解密流程代碼

微信官方文檔獲取手機(jī)號(hào)流程地址,先看下最好方便理解下面步驟
實(shí)現(xiàn)思路，步驟如下

1.前端需先調(diào)用官方wx.login接口獲取登錄憑證code。
2.后端接收code 調(diào)用官方接口地址獲取用戶秘鑰 sessionKey。
3.前端通過官方getPhoneNumber獲取encryptedData，iv
4.前端通過參數(shù)**【encryptedData】、【iv】、【sessionKey】** 發(fā)送請(qǐng)求后端接口，解密用戶手機(jī)號(hào)

小程序獲取sessionkey詳細(xì)接口文檔

后端工作如下，

1.參數(shù)code 解密出sessionKey
{“session_key”:“eF9PAi5P7ZbSaQqkGzEY5g==”,“openid”:“otJ1I4zMSFGDtk7C33O_h6U3IRK8”}
2.參數(shù)sessionKey，iv，encryptedData 解密出手機(jī)號(hào)

代碼如下：

下面工具類很全，放心代碼必須全，良心教程。

業(yè)務(wù)代碼Controller

package com.df.detection.controller;

import com.df.detection.base.entity.ResultBean;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import org.apache.commons.codec.binary.Base64;
import org.json.JSONException;
import org.springframework.web.bind.annotation.*;

import java.io.UnsupportedEncodingException;
import java.security.InvalidAlgorithmParameterException;

import org.json.JSONObject;

/**
 * @Author Songzhongjin
 * @Date 2020/7/15 10:09
 * @Version 1.0
 */
@Api(value = "小程序登錄授權(quán) Controller",tags = {"小程序登錄授權(quán)接口"})
@RestController
@RequestMapping("/app")
public class APPController {

  /**
   * 微信小程序登錄獲取
   * 獲取session_key
   * @param
   * @return
   */
  @ResponseBody
  @PostMapping("/initWxLogin")
  @ApiImplicitParams({
      @ApiImplicitParam(name = "js_code", value = "登錄時(shí)獲取的code",paramType = "form", dataType = "string", required = true)
  })
  public ResultBeaninitWxLogin(@RequestParam(value = "js_code", required = true) String js_code) throws JSONException {

    //測(cè)試數(shù)據(jù)code
//    js_code = "081ZQ3f91fr9VM1HYdb91y93f91ZQ3fU";
    //微信獲取session_key接口地址
    String wxLoginUrl = "https://api.weixin.qq.com/sns/jscode2session";
    //接口參數(shù)
    String param = "appid=小程序id&secret=小程序secret&js_code=" + js_code + "&grant_type=authorization_code";
    //調(diào)用獲取session_key接口 請(qǐng)求方式get
    String jsonString = GetPostUntil.sendGet(wxLoginUrl, param);
    System.out.println(jsonString);
    //因?yàn)閖son字符串是大括號(hào)包圍，所以用JSONObject解析
    JSONObject json = new JSONObject(jsonString);
    //json解析session_key值
    String session_key = json.getString("session_key");
    System.out.println("session_key：" + session_key);
    //返回給前端
    return ResultBean.success("session_key",session_key);
  }


  /**
   * 解密小程序用戶敏感數(shù)據(jù)
   *
   * @param encryptedData 明文
   * @param iv      加密算法的初始向量
   * @param sessionKey  用戶秘鑰
   * @return
   */
  @ResponseBody
  @PostMapping(value = "/decodeUserInfo")
  @ApiImplicitParams({
      @ApiImplicitParam(name = "encryptedData", value = "包括敏感數(shù)據(jù)在內(nèi)的完整用戶信息的加密數(shù)據(jù)",paramType = "form", dataType = "string", required = true),
      @ApiImplicitParam(name = "iv", value = "加密算法的初始向量",paramType = "form", dataType = "string", required = true),
      @ApiImplicitParam(name = "sessionKey", value = "用戶秘鑰",paramType = "form", dataType = "string", required = true)
  })
  public ResultBean decodeUserInfo(@RequestParam(required = true, value = "encryptedData") String encryptedData,
                      @RequestParam(required = true, value = "iv") String iv,
                      @RequestParam(required = true, value = "sessionKey") String sessionKey
  ) throws UnsupportedEncodingException, InvalidAlgorithmParameterException, JSONException {
    //AESUtils微信獲取手機(jī)號(hào)解密工具類
    AESUtils aes = new AESUtils();
    //調(diào)用AESUtils工具類decrypt方法解密獲取json串
    byte[] resultByte = aes.decrypt(Base64.decodeBase64(encryptedData), Base64.decodeBase64(sessionKey), Base64.decodeBase64(iv));
    //判斷返回參數(shù)是否為空
    if (null != resultByte && resultByte.length > 0) {
      String jsons = new String(resultByte, "UTF-8");
      System.out.println(jsons);
      JSONObject json = new JSONObject(jsons);
      //json解析phoneNumber值
      String phoneNumber = json.getString("phoneNumber");
      System.out.println("phoneNumber：" + phoneNumber);
      return ResultBean.success("手機(jī)號(hào)", phoneNumber);
    }
    return ResultBean.error(500,"session_key:失敗");
  }
}

工具類代碼如下

package com.df.detection.controller;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;

/**
 * @Author Songzhongjin
 * @Date 2020/7/15 10:37
 * @Version 1.0
 */
public class GetPostUntil {
  

    /**
     * 向指定URL發(fā)送GET方法的請(qǐng)求
     *
     * @param url
     *      發(fā)送請(qǐng)求的URL
     * @param param
     *      請(qǐng)求參數(shù)，請(qǐng)求參數(shù)應(yīng)該是 name1=value1&name2=value2 的形式。
     * @return URL 所代表遠(yuǎn)程資源的響應(yīng)結(jié)果
     */
    public static String sendGet(String url, String param) {
      String result = "";
      BufferedReader in = null;
      try {
        String urlNameString = url + "?" + param;
        URL realUrl = new URL(urlNameString);
        // 打開和URL之間的連接
        URLConnection connection = realUrl.openConnection();
        // 設(shè)置通用的請(qǐng)求屬性
        connection.setRequestProperty("accept", "*/*");
        connection.setRequestProperty("connection", "Keep-Alive");
        connection.setRequestProperty("user-agent",
            "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
        // 建立實(shí)際的連接
        connection.connect();
        // 獲取所有響應(yīng)頭字段
        Map<String, List<String>> map = connection.getHeaderFields();
        // 遍歷所有的響應(yīng)頭字段
        for (String key : map.keySet()) {
          System.out.println(key + "--->" + map.get(key));
        }
        // 定義 BufferedReader輸入流來讀取URL的響應(yīng)
        in = new BufferedReader(new InputStreamReader(
            connection.getInputStream()));
        String line;
        while ((line = in.readLine()) != null) {
          result += line;
        }
      } catch (Exception e) {
        System.out.println("發(fā)送GET請(qǐng)求出現(xiàn)異常！" + e);
        e.printStackTrace();
      }
      // 使用finally塊來關(guān)閉輸入流
      finally {
        try {
          if (in != null) {
            in.close();
          }
        } catch (Exception e2) {
          e2.printStackTrace();
        }
      }
      return result;
    }

    /**
     * 向指定 URL 發(fā)送POST方法的請(qǐng)求
     *
     * @param url
     *      發(fā)送請(qǐng)求的 URL
     * @param param
     *      請(qǐng)求參數(shù)，請(qǐng)求參數(shù)應(yīng)該是 name1=value1&name2=value2 的形式。
     * @return 所代表遠(yuǎn)程資源的響應(yīng)結(jié)果
     */
    public static String sendPost(String url, String param) {
      PrintWriter out = null;
      BufferedReader in = null;
      String result = "";
      try {
        URL realUrl = new URL(url);
        // 打開和URL之間的連接
        URLConnection conn = realUrl.openConnection();
        // 設(shè)置通用的請(qǐng)求屬性
        conn.setRequestProperty("accept", "*/*");
        conn.setRequestProperty("connection", "Keep-Alive");
        conn.setRequestProperty("user-agent",
            "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
        // 發(fā)送POST請(qǐng)求必須設(shè)置如下兩行
        conn.setDoOutput(true);
        conn.setDoInput(true);
        // 獲取URLConnection對(duì)象對(duì)應(yīng)的輸出流
        out = new PrintWriter(conn.getOutputStream());
        // 發(fā)送請(qǐng)求參數(shù)
        out.print(param);
        // flush輸出流的緩沖
        out.flush();
        // 定義BufferedReader輸入流來讀取URL的響應(yīng)
        in = new BufferedReader(
            new InputStreamReader(conn.getInputStream()));
        String line;
        while ((line = in.readLine()) != null) {
          result += line;
        }
      } catch (Exception e) {
        System.out.println("發(fā)送 POST 請(qǐng)求出現(xiàn)異常！"+e);
        e.printStackTrace();
      }
      //使用finally塊來關(guān)閉輸出流、輸入流
      finally{
        try{
          if(out!=null){
            out.close();
          }
          if(in!=null){
            in.close();
          }
        }
        catch(IOException ex){
          ex.printStackTrace();
        }
      }
      return result;
    }
  }

AESUtils工具類解密手機(jī)號(hào)

package com.df.detection.controller;

import org.apache.tomcat.util.codec.binary.Base64;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.transform.Result;
import java.security.*;

/**
 * @Author Songzhongjin
 * @Date 2020/7/15 11:46
 * @Version 1.0
 */
public class AESUtils {

  public static boolean initialized = false;
  /**
   * AES解密
   * @param content 密文
   * @return
   * @throws InvalidAlgorithmParameterException
   * @throws NoSuchProviderException
   */
  public byte[] decrypt(byte[] content, byte[] keyByte, byte[] ivByte) throws InvalidAlgorithmParameterException {
    initialize();
    try {
      Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
      Key sKeySpec = new SecretKeySpec(keyByte, "AES");
      cipher.init(Cipher.DECRYPT_MODE, sKeySpec, generateIV(ivByte));// 初始化
      byte[] result = cipher.doFinal(content);
      return result;
    } catch (NoSuchAlgorithmException e) {
      e.printStackTrace();
    } catch (NoSuchPaddingException e) {
      e.printStackTrace();
    } catch (InvalidKeyException e) {
      e.printStackTrace();
    } catch (IllegalBlockSizeException e) {
      e.printStackTrace();
    } catch (BadPaddingException e) {
      e.printStackTrace();
    } catch (NoSuchProviderException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (Exception e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    return null;
  }
  public static void initialize(){
    if (initialized) {
      return;
    }
    Security.addProvider(new BouncyCastleProvider());
    initialized = true;
  }
  //生成iv
  public static AlgorithmParameters generateIV(byte[] iv) throws Exception {
    AlgorithmParameters params = AlgorithmParameters.getInstance("AES");
    params.init(new IvParameterSpec(iv));
    return params;
  }


}

接口返回對(duì)象ResultBean定義工具類防止有些朋友發(fā)現(xiàn)沒有這個(gè)類

package com.df.detection.base.entity;

import io.swagger.annotations.ApiModelProperty;

/**
 * @author Liu Yaoguang
 * @Classname aaa
 * @Description
 * @Date 2019/12/06 09:22
 */
public class ResultBean<T> {

  @ApiModelProperty(value = "返回碼",dataType = "int")
  private int code;

  @ApiModelProperty(value = "返回描述信息",dataType = "string")
  private String message;

  @ApiModelProperty(value = "返回?cái)?shù)據(jù)")
  private T data;

  @ApiModelProperty(value = "口令",dataType = "string")
  private String token;

  private ResultBean() {

  }

  public static ResultBean error(int code, String message) {
    ResultBean resultBean = new ResultBean();
    resultBean.setCode(code);
    resultBean.setMessage(message);
    return resultBean;
  }
  public static<T> ResultBean error(int code, String message,T data) {
    ResultBean resultBean = new ResultBean();
    resultBean.setCode(code);
    resultBean.setMessage(message);
    resultBean.setData(data);
    return resultBean;
  }

  public static ResultBean success(String message) {
    ResultBean resultBean = new ResultBean();
    resultBean.setCode(200);
    resultBean.setMessage(message);
    return resultBean;
  }

  public static<T> ResultBean success(String message,T data) {
    ResultBean resultBean = new ResultBean();
    resultBean.setCode(200);
    resultBean.setMessage(message);
    resultBean.setData(data);
    return resultBean;
  }
  public static ResultBean success(String message,Object data,String token) {
    ResultBean resultBean = new ResultBean();
    resultBean.setCode(200);
    resultBean.setMessage(message);
    resultBean.setData(data);
    resultBean.setToken(token);
    return resultBean;
  }

  public int getCode() {
    return code;
  }

  public void setCode(int code) {
    this.code = code;
  }

  public String getMessage() {
    return message;
  }

  public void setMessage(String message) {
    this.message = message;
  }

  public T getData() {
    return data;
  }

  public void setData(T data) {
    this.data = data;
  }

  public String getToken() {
    return token;
  }

  public void setToken(String token) {
    this.token = token;
  }
}

以上就是微信小程序獲取手機(jī)號(hào)，后端JAVA解密流程代碼的詳細(xì)內(nèi)容，更多關(guān)于微信小程序獲取手機(jī)號(hào)的資料請(qǐng)關(guān)注腳本之家其它相關(guān)文章！

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