添加返回转byte

yzg-util-base/src/main/java/com/yanzuoguang/util/helper/HttpHelper.java

@@ -262,6 +262,47 @@ public class HttpHelper {
         return result.toString();
     }
 
+    /**
+     * 发送POST请求，当请求失败时，抛出异常或返回空字符串
+     *
+     * @param httpConn   链接信息
+     * @param jsonString 请求参数，json字符串。
+     * @return 远程响应结果
+     */
+    public static byte[] postResultByteArray(HttpURLConnection httpConn, String jsonString) throws IOException {
+        // 返回的结果
+        byte[] byteArray;
+        PrintWriter out = null;
+        // 处理请求参数
+        String params = "";
+        try {
+            params = jsonString;
+            // 获取HttpURLConnection对象对应的输出流
+            out = new PrintWriter(httpConn.getOutputStream());
+            // 发送请求参数
+            out.write(params);
+            // flush输出流的缓冲
+            out.flush();
+
+            int returnCode = httpConn.getResponseCode();
+            if (returnCode == HttpURLConnection.HTTP_OK) {
+                byteArray = readByteArray(httpConn.getInputStream());
+            } else {
+                throw new HttpCodeException(StringHelper.toString(returnCode), httpConn.getResponseMessage());
+            }
+        } catch (HttpCodeException ex) {
+            throw ex;
+        } catch (Exception ex) {
+            byteArray = readByteArray(httpConn.getErrorStream());
+            throw new HttpCodeException(StringHelper.toString(httpConn.getResponseCode()), ex.getMessage(), ex);
+        } finally {
+            if (out != null) {
+                out.close();
+            }
+        }
+        return byteArray;
+    }
+
     /**
      * 发送GET请求，当请求失败时，抛出异常或返回空字符串
      *
@@ -320,6 +361,23 @@ public class HttpHelper {
         return in;
     }
 
+    /**
+     * 读取数据流
+     *
+     * @param input 流
+     * @return 读取的缓存流
+     * @throws IOException IO异常
+     */
+    public static byte[] readByteArray(InputStream input) throws IOException {
+        ByteArrayOutputStream output = new ByteArrayOutputStream();
+        byte[] buffer = new byte[1024 * 4];
+        int n = 0;
+        while (-1 != (n = input.read(buffer))) {
+            output.write(buffer, 0, n);
+        }
+        return output.toByteArray();
+    }
+
     /**
      * 下载文件
      *

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/base/WxXcxByteArrayRequest.java

+package com.yanzuoguang.wxxcx.base;
+
+/**
+ * @author 李贤军
+ */
+public interface WxXcxByteArrayRequest {
+    /**
+     * 请求其他
+     *
+     * @param req     请求后端实现
+     * @param convert 转换参数
+     * @return 返回请求流
+     */
+    byte[] request(WxXcxRequestUrl req, WxXcxResponseArrayByteConvert convert);
+}

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/base/WxXcxRequestByteArrayImpl.java

+package com.yanzuoguang.wxxcx.base;
+
+import com.yanzuoguang.util.helper.HttpHelper;
+import org.springframework.beans.factory.annotation.Value;
+
+import java.net.HttpURLConnection;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * @author 李贤军
+ */
+public class WxXcxRequestByteArrayImpl implements WxXcxByteArrayRequest {
+
+    @Value("${yzg.wx.xwx.charset:utf-8}")
+    private String defaultCharSet;
+
+    @Override
+    public byte[] request(WxXcxRequestUrl req, WxXcxResponseArrayByteConvert convert) {
+        String url = req.getUrl();
+//        String charSet = defaultCharSet;
+        String charSet = "utf-8";
+        Map<String, String> header;
+        if (req instanceof WxXcxRequestHeader) {
+            // 设置header信息
+            header = ((WxXcxRequestHeader) req).getHeader();
+        } else {
+            header = new HashMap<>(0);
+        }
+        byte[] response = null;
+        try {
+            if (req instanceof WxXcxRequestPostFormData) {
+                WxXcxRequestPostFormData post = (WxXcxRequestPostFormData) req;
+                HttpURLConnection conn = HttpHelper.getConn(url, header);
+                response = HttpHelper.postResultByteArray(conn, post.getPost());
+            } else if (req instanceof WxXcxRequestPostApplication) {
+                WxXcxRequestPostApplication post = (WxXcxRequestPostApplication) req;
+                // 打开URL连接
+                java.net.HttpURLConnection httpConn = HttpHelper.getConn(url, header, true);
+                response = HttpHelper.postResultByteArray(httpConn, post.getPost());
+            }
+        } catch (Exception ex) {
+            throw new RuntimeException(ex);
+        }
+        return convert.getResponse(response);
+    }
+}

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/base/WxXcxResponseArrayByteConvert.java

+package com.yanzuoguang.wxxcx.base;
+
+/**
+ * @author 李贤军
+ */
+public interface WxXcxResponseArrayByteConvert  {
+
+    /**
+     * 将字符串转换为结果
+     *
+     * @param response 字符串
+     * @return 实体结果
+     */
+    byte[] getResponse(byte[] response);
+}

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/codeorlink/urlscheme/WxXcxUrlSchemeGenerateJumpWxaReq.java

 package com.yanzuoguang.wxxcx.codeorlink.urlscheme;
 
+import java.io.Serializable;
+
 /**
  * 获取小程序 scheme 码，适用于短信、邮件、外部网页、微信内等拉起小程序的业务场景。目前仅针对国内非个人主体的小程序开放
  *
  * @author 李贤军
  */
-public class WxXcxUrlSchemeGenerateJumpWxaReq {
+public class WxXcxUrlSchemeGenerateJumpWxaReq implements Serializable {
     /**
      * 通过 scheme 码进入的小程序页面路径，必须是已经发布的小程序存在的页面，不可携带 query。path 为空时会跳转小程序主页
      */

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/codeorlink/urlscheme/WxXcxUrlSchemeGenerateReq.java

 package com.yanzuoguang.wxxcx.codeorlink.urlscheme;
 
+import java.io.Serializable;
+
 /**
  * 获取小程序 scheme 码 请求
  * 适用于短信、邮件、外部网页、微信内等拉起小程序的业务场景。目前仅针对国内非个人主体的小程序开放
  *
  * @author 李贤军
  */
-public class WxXcxUrlSchemeGenerateReq {
-    /**
-     * 接口调用凭证
-     */
-    private String access_token;
+public class WxXcxUrlSchemeGenerateReq implements Serializable {
+
     /**
      * 	跳转到的目标小程序信息。
      */
@@ -28,13 +27,6 @@ public class WxXcxUrlSchemeGenerateReq {
      */
     private int expire_interval;
 
-    public String getAccess_token() {
-        return access_token;
-    }
-
-    public void setAccess_token(String access_token) {
-        this.access_token = access_token;
-    }
 
     public WxXcxUrlSchemeGenerateJumpWxaReq getJump_wxa() {
         return jump_wxa;

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/codeorlink/urlscheme/WxXcxUrlSchemeGenerateRequest.java

 package com.yanzuoguang.wxxcx.codeorlink.urlscheme;
 
 
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONObject;
 import com.alibaba.fastjson.TypeReference;
 import com.yanzuoguang.util.helper.CheckerHelper;
 import com.yanzuoguang.util.helper.HttpHelper;
 import com.yanzuoguang.util.helper.JsonHelper;
 import com.yanzuoguang.wxxcx.base.*;
+import com.yanzuoguang.wxxcx.codeorlink.urlscheme.service.WxXcxUrlSchemeGenerateService;
+import com.yanzuoguang.wxxcx.codeorlink.urlscheme.service.impl.WxXcxUrlSchemeGenerateServiceImpl;
+
+import java.util.HashMap;
+import java.util.Map;
 
 /**
  * 获取小程序 scheme 码 转换
@@ -13,7 +20,7 @@ import com.yanzuoguang.wxxcx.base.*;
  *
  * @author 李贤军
  */
-public class WxXcxUrlSchemeGenerateRequest implements WxXcxRequestUrl, WxXcxRequestUrlPara, WxXcxRequestPostFormData {
+public class WxXcxUrlSchemeGenerateRequest implements WxXcxRequestUrl, WxXcxRequestUrlPara, WxXcxRequestPostApplication {
 
     private final WxXcxConfig wxXcxConfig;
     private final WxXcxRequest wxXcxRequest;
@@ -39,11 +46,10 @@ public class WxXcxUrlSchemeGenerateRequest implements WxXcxRequestUrl, WxXcxRequ
 
     @Override
     public String getPost() {
-        return HttpHelper.getUrlParameter(req);
+        return JSON.toJSONString(req);
     }
 
     public WxXcxUrlSchemeGenerateRes getResponse() {
-        checkParam(req);
         return this.wxXcxRequest.request(this, response -> {
             WxXcxUrlSchemeGenerateRes ret = JsonHelper.deserialize(response, new TypeReference<WxXcxUrlSchemeGenerateRes>() {
             });
@@ -52,7 +58,5 @@ public class WxXcxUrlSchemeGenerateRequest implements WxXcxRequestUrl, WxXcxRequ
         });
     }
 
-    private void checkParam(WxXcxUrlSchemeGenerateReq req) {
-        CheckerHelper.newInstance().notBlankCheck(WxXcxAccessTokenField.FIELD_ACCESS_TOKEN, req.getAccess_token()).checkException();
-    }
+
 }
\ No newline at end of file

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/codeorlink/wxacode/WxXcxWxaCodeCreateQrCodeReq.java

 package com.yanzuoguang.wxxcx.codeorlink.wxacode;
 
 
+import java.io.Serializable;
+
 /**
  * 获取小程序二维码 请求
  * 适用于需要的码数量较少的业务场景。通过该接口生成的小程序码，永久有效，有数量限制
  *
  * @author 李贤军
  */
-public class WxXcxWxaCodeCreateQrCodeReq {
+public class WxXcxWxaCodeCreateQrCodeReq implements Serializable {
     /**
      * 接口调用凭证
      */

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/codeorlink/wxacode/WxXcxWxaCodeCreateQrCodeRequest.java

 package com.yanzuoguang.wxxcx.codeorlink.wxacode;
 
+import com.alibaba.fastjson.JSONObject;
 import com.alibaba.fastjson.TypeReference;
 import com.yanzuoguang.util.helper.CheckerHelper;
 import com.yanzuoguang.util.helper.HttpHelper;
@@ -38,7 +39,7 @@ public class WxXcxWxaCodeCreateQrCodeRequest implements WxXcxRequestUrl, WxXcxRe
 
     @Override
     public String getPost() {
-        return HttpHelper.getUrlParameter(req);
+        return JSONObject.toJSONString(req);
     }
 
     public WxXcxWxaCodeCreateQrCodeRes getResponse() {

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/codeorlink/wxacode/WxXcxWxaCodeGetUnlimitedReq.java

@@ -7,10 +7,7 @@ package com.yanzuoguang.wxxcx.codeorlink.wxacode;
  * @author 李贤军
  */
 public class WxXcxWxaCodeGetUnlimitedReq {
-    /**
-     * 接口调用凭证
-     */
-    private String access_token;
+
     /**
      * 最大32个可见字符，只支持数字，大小写英文以及部分特殊字符：!#$&'()*+,/:;=?@-._~，其它字符请自行编码为合法字符（因不支持%，中文无法使用 urlencode 处理，请使用其他编码方式
      */
@@ -27,10 +24,6 @@ public class WxXcxWxaCodeGetUnlimitedReq {
      * 要打开的小程序版本。正式版为 release，体验版为 trial，开发版为 develop
      */
     private String env_version;
-    /**
-     * 二维码的宽度，单位 px，最小 280px，最大 1280px
-     */
-    private int width;
     /**
      * 自动配置线条颜色，如果颜色依然是黑色，则说明不建议配置主色调，默认 false
      */
@@ -44,14 +37,6 @@ public class WxXcxWxaCodeGetUnlimitedReq {
      */
     private boolean is_hyaline;
 
-    public String getAccess_token() {
-        return access_token;
-    }
-
-    public void setAccess_token(String access_token) {
-        this.access_token = access_token;
-    }
-
     public String getScene() {
         return scene;
     }
@@ -84,14 +69,6 @@ public class WxXcxWxaCodeGetUnlimitedReq {
         this.env_version = env_version;
     }
 
-    public int getWidth() {
-        return width;
-    }
-
-    public void setWidth(int width) {
-        this.width = width;
-    }
-
     public boolean isAuto_color() {
         return auto_color;
     }

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/codeorlink/wxacode/WxXcxWxaCodeGetUnlimitedRequest.java

 package com.yanzuoguang.wxxcx.codeorlink.wxacode;
 
+import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.TypeReference;
+import com.sun.org.apache.regexp.internal.RE;
 import com.yanzuoguang.util.helper.CheckerHelper;
 import com.yanzuoguang.util.helper.HttpHelper;
 import com.yanzuoguang.util.helper.JsonHelper;
@@ -12,16 +14,16 @@ import com.yanzuoguang.wxxcx.base.*;
  *
  * @author 李贤军
  */
-public class WxXcxWxaCodeGetUnlimitedRequest implements WxXcxRequestUrl, WxXcxRequestUrlPara, WxXcxRequestPostFormData {
+public class WxXcxWxaCodeGetUnlimitedRequest implements WxXcxRequestUrl, WxXcxRequestUrlPara, WxXcxRequestPostApplication {
 
     private final WxXcxConfig wxXcxConfig;
-    private final WxXcxRequest wxXcxRequest;
+    private final WxXcxByteArrayRequest wxXcxByteArrayRequest;
     private final WxXcxAccessToken accessToken;
     private final WxXcxWxaCodeGetUnlimitedReq req;
 
-    public WxXcxWxaCodeGetUnlimitedRequest(WxXcxConfig wxXcxConfig, WxXcxRequest wxXcxRequest, WxXcxAccessToken accessToken, WxXcxWxaCodeGetUnlimitedReq req) {
+    public WxXcxWxaCodeGetUnlimitedRequest(WxXcxConfig wxXcxConfig, WxXcxByteArrayRequest wxXcxByteArrayRequest, WxXcxAccessToken accessToken, WxXcxWxaCodeGetUnlimitedReq req) {
         this.wxXcxConfig = wxXcxConfig;
-        this.wxXcxRequest = wxXcxRequest;
+        this.wxXcxByteArrayRequest = wxXcxByteArrayRequest;
         this.accessToken = accessToken;
         this.req = req;
     }
@@ -38,22 +40,21 @@ public class WxXcxWxaCodeGetUnlimitedRequest implements WxXcxRequestUrl, WxXcxRe
 
     @Override
     public String getPost() {
-        return HttpHelper.getUrlParameter(req);
+        return JSON.toJSONString(req);
     }
 
     public WxXcxWxaCodeGetUnlimitedRes getResponse() {
         checkParam(req);
-        return this.wxXcxRequest.request(this, response -> {
-            WxXcxWxaCodeGetUnlimitedRes ret = JsonHelper.deserialize(response, new TypeReference<WxXcxWxaCodeGetUnlimitedRes>() {
-            });
+        return this.wxXcxByteArrayRequest.request(this, response -> {
+            WxXcxWxaCodeGetUnlimitedRes ret =  new WxXcxWxaCodeGetUnlimitedRes();
+            ret.setData(response);
             WxXcxAssert.assertBaseError(ret);
             return ret;
         });
     }
 
     private void checkParam(WxXcxWxaCodeGetUnlimitedReq req) {
-        CheckerHelper.newInstance().notBlankCheck(WxXcxAccessTokenField.FIELD_ACCESS_TOKEN, req.getAccess_token())
-                .notBlankCheck("scene", req.getScene())
+        CheckerHelper.newInstance().notBlankCheck("scene", req.getScene())
                 .checkException();
     }
 }
\ No newline at end of file

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/codeorlink/wxacode/WxXcxWxaCodeGetUnlimitedRes.java

@@ -2,8 +2,6 @@ package com.yanzuoguang.wxxcx.codeorlink.wxacode;
 
 import com.yanzuoguang.wxxcx.base.WxXcxResponseBaseError;
 
-import java.nio.Buffer;
-
 /**
  * 获取小程序码 响应
  * 适用于需要的码数量极多的业务场景。通过该接口生成的小程序码，永久有效，数量暂无限制
@@ -11,28 +9,13 @@ import java.nio.Buffer;
  * @author 李贤军
  */
 public class WxXcxWxaCodeGetUnlimitedRes extends WxXcxResponseBaseError {
-    /**
-     * 数据类型 (MIME Type)
-     */
-    private String contentType;
-    /**
-     * 数据 Buffer
-     */
-    private Buffer buffer;
-
-    public String getContentType() {
-        return contentType;
-    }
-
-    public void setContentType(String contentType) {
-        this.contentType = contentType;
-    }
+    private byte[] data;
 
-    public Buffer getBuffer() {
-        return buffer;
+    public byte[] getData() {
+        return data;
     }
 
-    public void setBuffer(Buffer buffer) {
-        this.buffer = buffer;
+    public void setData(byte[] data) {
+        this.data = data;
     }
 }

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/codeorlink/wxacode/service/impl/WxXcxWxaCodeGetUnlimitedServiceImpl.java

 package com.yanzuoguang.wxxcx.codeorlink.wxacode.service.impl;
 
 import com.yanzuoguang.wxxcx.base.WxXcxAccessToken;
+import com.yanzuoguang.wxxcx.base.WxXcxByteArrayRequest;
 import com.yanzuoguang.wxxcx.base.WxXcxConfig;
 import com.yanzuoguang.wxxcx.base.WxXcxRequest;
 import com.yanzuoguang.wxxcx.codeorlink.wxacode.WxXcxWxaCodeGetUnlimitedReq;
@@ -17,11 +18,11 @@ import org.springframework.stereotype.Component;
 @Component
 public class WxXcxWxaCodeGetUnlimitedServiceImpl implements WxXcxWxaCodeGetUnlimitedService {
     private final WxXcxConfig wxXcxConfig;
-    private final WxXcxRequest wxXcxRequest;
+    private final WxXcxByteArrayRequest wxXcxByteArrayRequest;
 
-    public WxXcxWxaCodeGetUnlimitedServiceImpl(WxXcxConfig wxXcxConfig, WxXcxRequest wxXcxRequest) {
+    public WxXcxWxaCodeGetUnlimitedServiceImpl(WxXcxConfig wxXcxConfig, WxXcxByteArrayRequest wxXcxByteArrayRequest) {
         this.wxXcxConfig = wxXcxConfig;
-        this.wxXcxRequest = wxXcxRequest;
+        this.wxXcxByteArrayRequest = wxXcxByteArrayRequest;
     }
 
     /**
@@ -33,7 +34,7 @@ public class WxXcxWxaCodeGetUnlimitedServiceImpl implements WxXcxWxaCodeGetUnlim
      */
     @Override
     public WxXcxWxaCodeGetUnlimitedRes getWxaCodeGetUnlimited(WxXcxAccessToken accessToken, WxXcxWxaCodeGetUnlimitedReq req) {
-        WxXcxWxaCodeGetUnlimitedRequest request = new WxXcxWxaCodeGetUnlimitedRequest(wxXcxConfig, wxXcxRequest, accessToken, req);
+        WxXcxWxaCodeGetUnlimitedRequest request = new WxXcxWxaCodeGetUnlimitedRequest(wxXcxConfig, wxXcxByteArrayRequest, accessToken, req);
         return request.getResponse();
     }
 }

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/login/service/WxXcxAuthCode2SessionService.java

@@ -2,7 +2,6 @@ package com.yanzuoguang.wxxcx.login.service;
 
 import com.yanzuoguang.wxxcx.login.WxXcxAuthCode2SessionReq;
 import com.yanzuoguang.wxxcx.login.WxXcxAuthCode2SessionRes;
-import com.yanzuoguang.wxxcx.base.WxXcxAccessToken;
 
 /**
  * 登录凭证校验参数 接口
@@ -13,10 +12,9 @@ public interface WxXcxAuthCode2SessionService {
     /**
      * 登录凭证校验参数
      *
-     * @param accessToken accessToken
      * @param req         登录凭证校验参数 入参
      * @return 登录凭证校验参数 返回
      */
-    WxXcxAuthCode2SessionRes getAuthCode2Session(WxXcxAccessToken accessToken, WxXcxAuthCode2SessionReq req);
+    WxXcxAuthCode2SessionRes getAuthCode2Session(WxXcxAuthCode2SessionReq req);
 
 }

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/login/service/impl/WxXcxAuthCode2SessionServiceImpl.java

@@ -4,7 +4,6 @@ import com.yanzuoguang.wxxcx.login.WxXcxAuthCode2SessionReq;
 import com.yanzuoguang.wxxcx.login.WxXcxAuthCode2SessionRequest;
 import com.yanzuoguang.wxxcx.login.WxXcxAuthCode2SessionRes;
 import com.yanzuoguang.wxxcx.login.service.WxXcxAuthCode2SessionService;
-import com.yanzuoguang.wxxcx.base.WxXcxAccessToken;
 import com.yanzuoguang.wxxcx.base.WxXcxConfig;
 import com.yanzuoguang.wxxcx.base.WxXcxRequest;
 import org.springframework.stereotype.Component;
@@ -27,12 +26,11 @@ public class WxXcxAuthCode2SessionServiceImpl implements WxXcxAuthCode2SessionSe
     /**
      * 登录凭证校验参数
      *
-     * @param accessToken accessToken
      * @param req         登录凭证校验参数 入参
      * @return 登录凭证校验参数返回
      */
     @Override
-    public WxXcxAuthCode2SessionRes getAuthCode2Session(WxXcxAccessToken accessToken, WxXcxAuthCode2SessionReq req) {
+    public WxXcxAuthCode2SessionRes getAuthCode2Session( WxXcxAuthCode2SessionReq req) {
         WxXcxAuthCode2SessionRequest request = new WxXcxAuthCode2SessionRequest(wxXcxConfig, wxXcxRequest, req);
         return request.getResponse();
     }

yzg-util-wxxcx/src/main/java/com/yanzuoguang/wxxcx/utils/WeChatUtil.java

+package com.yanzuoguang.wxxcx.utils;
+
+import org.bouncycastle.jce.provider.BouncyCastleProvider;
+import org.bouncycastle.util.Arrays;
+import org.bouncycastle.util.encoders.Base64;
+
+import javax.crypto.Cipher;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
+import java.security.Key;
+import java.security.Security;
+/**
+ * 微信工具类
+ *
+ * @author 李贤军
+ */
+public class WeChatUtil {
+
+    public static void main(String[] args) {
+        String result = decryptData(
+                "+6fr9M+bNeRk8LQOOuxqBLuzsydnIh7D2UvImuWicfzJsbrRFptPr7yXHubgTdRd6JHwvjDXD+Q9L0oeTjXlBZilfipjRZJSV7nOpaq++DB5wQr6hKAPsvLmUjOpTPocpVrRDbkXRQKAgl6uTXkR8SdUL3j0zihANr3ANaz2kgg8X+iCJKSxmCuxwPswFCrYaXih2Z7+s/EqWU0ACFgaoZMNkliYBy9mF/pwzCfzsDVx+eJu1eG2UmU6e0e8rUOcEGv4KxfYntvLBN7LJEfOEfYcyemNYtVt3ALDE2sOxI4pb8XxUUO3zn+Yt7e5xWqmfqFj1YK3CCl0ILHle5JlZxGz178PsztDoCnOMoA4NwEoGfqCsUH1pM7AsyfcOh27yqqk=",
+                "2gCRTCyEpjQTW5Fc89yg==",
+                "XBzf8VMLBIsFBZvjOWNg=="
+        );
+        System.out.println("result = " + result);
+    }
+
+    public static String decryptData(String encryptDataB64, String sessionKeyB64, String ivB64) {
+        return new String(
+                decryptOfDiyIV(
+                        Base64.decode(encryptDataB64),
+                        Base64.decode(sessionKeyB64),
+                        Base64.decode(ivB64)
+                )
+        );
+    }
+
+    private static final String KEY_ALGORITHM = "AES";
+    private static final String ALGORITHM_STR = "AES/CBC/PKCS7Padding";
+    private static Key key;
+    private static Cipher cipher;
+
+    private static void init(byte[] keyBytes) {
+        // 如果密钥不足16位，那么就补足.  这个if 中的内容很重要
+        int base = 16;
+        if (keyBytes.length % base != 0) {
+            int groups = keyBytes.length / base + (keyBytes.length % base != 0 ? 1 : 0);
+            byte[] temp = new byte[groups * base];
+            Arrays.fill(temp, (byte) 0);
+            System.arraycopy(keyBytes, 0, temp, 0, keyBytes.length);
+            keyBytes = temp;
+        }
+        // 初始化
+        Security.addProvider(new BouncyCastleProvider());
+        // 转化成JAVA的密钥格式
+        key = new SecretKeySpec(keyBytes, KEY_ALGORITHM);
+        try {
+            // 初始化cipher
+            cipher = Cipher.getInstance(ALGORITHM_STR, "BC");
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * 解密方法
+     *
+     * @param encryptedData 要解密的字符串
+     * @param keyBytes      解密密钥
+     * @param ivs           自定义对称解密算法初始向量 iv
+     * @return 解密后的字节数组
+     */
+    private static byte[] decryptOfDiyIV(byte[] encryptedData, byte[] keyBytes, byte[] ivs) {
+        byte[] encryptedText = null;
+        init(keyBytes);
+        try {
+            cipher.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(ivs));
+            encryptedText = cipher.doFinal(encryptedData);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return encryptedText;
+    }
+
+}
\ No newline at end of file