add(operation-backend):[wechat 信息]

operation-backend/pom.xml

@@ -24,6 +24,11 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-validation</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-configuration-processor</artifactId>
+            <optional>true</optional>
+        </dependency>
         <!--mysql  mybatis-plus   start-->
         <dependency>
             <groupId>com.baomidou</groupId>
@@ -62,6 +67,24 @@
         </dependency>
         <!--JWT end-->
 
+        <!--微信需要使用到的包 start-->
+        <!-- https://mvnrepository.com/artifact/dom4j/dom4j -->
+        <dependency>
+            <groupId>dom4j</groupId>
+            <artifactId>dom4j</artifactId>
+            <version>1.6.1</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/commons-codec/commons-codec -->
+        <dependency>
+            <groupId>commons-codec</groupId>
+            <artifactId>commons-codec</artifactId>
+            <version>1.9</version>
+        </dependency>
+
+        <!--微信需要使用到的包 start-->
+
+
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>

operation-backend/src/main/java/com/idiot/operationbackend/config/PlatformProperties.java

@@ -0,0 +1,68 @@
+package com.idiot.operationbackend.config;
+
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.stereotype.Component;
+
+/**
+ * 微信第三方平台配置类
+ * @author wang xiao
+ * @date Created in 13:46 2020/9/11
+ */
+@Component
+@ConfigurationProperties(prefix = "wechat.platform")
+public class PlatformProperties {
+
+    /**
+     * appId
+     */
+    private String appId;
+
+    /**
+     * 授权回调域名 配置需要和第三方平台一致
+     */
+    private String authDomain;
+
+    /**
+     * 加解密key
+     */
+    private String secret;
+
+    /**
+     * 开发平台上面配置的token
+     */
+    private String token;
+
+
+    public String getAppId() {
+        return appId;
+    }
+
+    public void setAppId(String appId) {
+        this.appId = appId;
+    }
+
+    public String getAuthDomain() {
+        return authDomain;
+    }
+
+    public void setAuthDomain(String authDomain) {
+        this.authDomain = authDomain;
+    }
+
+    public String getSecret() {
+        return secret;
+    }
+
+    public void setSecret(String secret) {
+        this.secret = secret;
+    }
+
+    public String getToken() {
+        return token;
+    }
+
+    public void setToken(String token) {
+        this.token = token;
+    }
+}

operation-backend/src/main/java/com/idiot/operationbackend/controller/WeChatController.java

@@ -1,14 +1,28 @@
 package com.idiot.operationbackend.controller;
 
+import com.idiot.operationbackend.config.PlatformProperties;
+import com.idiot.operationbackend.service.facade.WeChatService;
+import com.idiot.operationbackend.support.Constants;
 import com.idiot.operationbackend.support.JsonResult;
+import com.idiot.operationbackend.support.wechat.WXBizMsgCrypt;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
+import org.dom4j.Document;
+import org.dom4j.Element;
+import org.dom4j.io.SAXReader;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
+import javax.servlet.http.HttpServletRequest;
+import java.io.BufferedInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
 
 
 /**
@@ -20,8 +34,15 @@ import org.springframework.web.bind.annotation.RestController;
 @Api(value = "WeChatController", tags ="微信")
 public class WeChatController {
 
+    private final Logger logger = LoggerFactory.getLogger(WeChatController.class);
 
 
+    @Autowired
+    private WeChatService weChatService;
+
+    @Autowired
+    private PlatformProperties properties;
+
 
 
     @GetMapping("preAuth")
@@ -35,9 +56,82 @@ public class WeChatController {
 
     @PostMapping("/authCallBack")
     @ApiOperation(value = "第三方平台,授权事件接受url")
-    public String componentCallBack() {
-        return "success";
+    public String componentCallBack(HttpServletRequest request)  {
+
+        String nonce = request.getParameter("nonce");
+        String timestamp = request.getParameter("timestamp");
+        // 默认aes
+        String encryptType = request.getParameter("encrypt_type");
+        String msgSignature = request.getParameter("msg_signature");
+        logger.info("微信授权事件回调,回调param参数依次是nonce:{},timestamp:{},encrypt_type:{},msg_signature:{}",nonce,
+                timestamp,encryptType,msgSignature);
+
+        try {
+            WXBizMsgCrypt pc = new WXBizMsgCrypt(properties.getToken(),properties.getSecret(),properties.getAppId());
+            BufferedInputStream bis = new BufferedInputStream(request.getInputStream());
+            ByteArrayOutputStream buf = new ByteArrayOutputStream();
+            int result = bis.read();
+            while(result != -1) {
+                buf.write((byte) result);
+                result = bis.read();
+            }
+            String postData = buf.toString("utf-8");
+            logger.info("微信授权事件回调,postData before decry :{}",postData);
+            postData = pc.decryptMsg(msgSignature,timestamp,nonce,postData);
+            logger.info("微信授权事件回调,postData after decry :{}",postData);
+            return weChatService.authCallBack(xmlToMap(postData));
+        }catch (Exception e) {
+            logger.info("微信授权事件回调 ------->失败,message is :{}",e.getMessage());
+            return Constants.SUCCESS;
+        }
     }
 
 
+
+    /**
+     *  微信消息转换成map(非加密)
+     * @author wangxiao
+     * @date 14:10 2020/9/11
+     * @param inputStream
+     * @return java.util.Map<java.lang.String,java.lang.String>
+     */
+    private Map<String, String> xmlToMap(InputStream inputStream) {
+        SAXReader saxReader = new SAXReader();
+        try {
+            Document document = saxReader.read(inputStream);
+            return parseDocument(document);
+        }catch (Exception e) {
+            logger.error("xml 转换出错");
+            return null;
+        }
+    }
+
+
+    /**
+     *  微信消息转换成map(非加密)
+     * @author wangxiao
+     * @date 14:10 2020/9/11
+     * @param data
+     * @return java.util.Map<java.lang.String,java.lang.String>
+     */
+    private Map<String, String> xmlToMap(String data) {
+        SAXReader saxReader = new SAXReader();
+        try {
+            Document document = saxReader.read(data);
+            return parseDocument(document);
+        }catch (Exception e) {
+            logger.error("xml 转换出错");
+            return null;
+        }
+    }
+
+    private Map<String,String> parseDocument (Document document) {
+        Map<String, String> map = new HashMap<>(10);
+        Element root = document.getRootElement();
+        List<Element> elements = root.elements();
+        for (Element element : elements) {
+            map.put(element.getName(), element.getStringValue());
+        }
+        return map;
+    }
 }

operation-backend/src/main/java/com/idiot/operationbackend/service/facade/WeChatService.java

@@ -1,9 +1,22 @@
 package com.idiot.operationbackend.service.facade;
 
+import java.util.Map;
+
 /**
  * 微信处理
  * @author wang xiao
  * @date Created in 10:53 2020/9/11
  */
 public interface WeChatService {
+
+  /**
+   *  授权回调
+   * @author wangxiao
+   * @date 14:17 2020/9/11
+   * @param param
+   * @return java.lang.String
+   */
+    String authCallBack(Map<String,String> param);
+
+
 }

operation-backend/src/main/java/com/idiot/operationbackend/service/impl/WeChatServiceImpl.java

@@ -1,12 +1,33 @@
 package com.idiot.operationbackend.service.impl;
 
 import com.idiot.operationbackend.service.facade.WeChatService;
+import com.idiot.operationbackend.support.Constants;
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.stereotype.Service;
 
+import java.util.Map;
+import java.util.Objects;
+
 /**
  * @author wang xiao
  * @date Created in 10:54 2020/9/11
  */
 @Service
-public class WeChatServiceImpl implements WeChatService {
+public class WeChatServiceImpl implements WeChatService, InitializingBean {
+
+    @Override
+    public String authCallBack(Map<String, String> param) {
+
+        if (Objects.isNull(param)) {
+            return Constants.SUCCESS;
+        }
+        String appId = param.get("AppId");
+        String infoType = param.get("InfoType");
+        return null;
+    }
+
+    @Override
+    public void afterPropertiesSet() throws Exception {
+
+    }
 }

operation-backend/src/main/java/com/idiot/operationbackend/support/wechat/AesException.java

@@ -0,0 +1,50 @@
+package com.idiot.operationbackend.support.wechat;
+
+@SuppressWarnings("serial")
+public class AesException extends Exception {
+
+	public final static int OK = 0;
+	public final static int VALIDATE_SIGNATURE_ERROR = -40001;
+	public final static int PARSE_XML_ERROR = -40002;
+	public final static int COMPUTE_SIGNATURE_ERROR = -40003;
+	public final static int ILLEGAL_AES_KEY = -40004;
+	public final static int VALIDATE_APPID_ERROR = -40005;
+	public final static int ENCRYPTAES_ERROR = -40006;
+	public final static int DECRYPTAES_ERROR = -40007;
+	public final static int ILLEGAL_BUFFER = -40008;
+
+	private int code;
+
+	private static String getMessage(int code) {
+		switch (code) {
+		case VALIDATE_SIGNATURE_ERROR:
+			return "签名验证错误";
+		case PARSE_XML_ERROR:
+			return "xml解析失败";
+		case COMPUTE_SIGNATURE_ERROR:
+			return "sha加密生成签名失败";
+		case ILLEGAL_AES_KEY:
+			return "SymmetricKey非法";
+		case VALIDATE_APPID_ERROR:
+			return "appid校验失败";
+		case ENCRYPTAES_ERROR:
+			return "aes加密失败";
+		case DECRYPTAES_ERROR:
+			return "aes解密失败";
+		case ILLEGAL_BUFFER:
+			return "解密后得到的buffer非法";
+		default:
+			return null;
+		}
+	}
+
+	public int getCode() {
+		return code;
+	}
+
+	AesException(int code) {
+		super(getMessage(code));
+		this.code = code;
+	}
+
+}

operation-backend/src/main/java/com/idiot/operationbackend/support/wechat/ByteGroup.java

@@ -0,0 +1,26 @@
+package com.idiot.operationbackend.support.wechat;
+
+import java.util.ArrayList;
+
+class ByteGroup {
+	ArrayList<Byte> byteContainer = new ArrayList<Byte>();
+
+	public byte[] toBytes() {
+		byte[] bytes = new byte[byteContainer.size()];
+		for (int i = 0; i < byteContainer.size(); i++) {
+			bytes[i] = byteContainer.get(i);
+		}
+		return bytes;
+	}
+
+	public ByteGroup addBytes(byte[] bytes) {
+		for (byte b : bytes) {
+			byteContainer.add(b);
+		}
+		return this;
+	}
+
+	public int size() {
+		return byteContainer.size();
+	}
+}

operation-backend/src/main/java/com/idiot/operationbackend/support/wechat/PKCS7Encoder.java

@@ -0,0 +1,67 @@
+/**
+ * 对公众平台发送给公众账号的消息加解密示例代码.
+ * 
+ * @copyright Copyright (c) 1998-2014 Tencent Inc.
+ */
+
+// ------------------------------------------------------------------------
+
+package com.idiot.operationbackend.support.wechat;
+
+import java.nio.charset.Charset;
+import java.util.Arrays;
+
+/**
+ * 提供基于PKCS7算法的加解密接口.
+ */
+class PKCS7Encoder {
+	static Charset CHARSET = Charset.forName("utf-8");
+	static int BLOCK_SIZE = 32;
+
+	/**
+	 * 获得对明文进行补位填充的字节.
+	 * 
+	 * @param count 需要进行填充补位操作的明文字节个数
+	 * @return 补齐用的字节数组
+	 */
+	static byte[] encode(int count) {
+		// 计算需要填充的位数
+		int amountToPad = BLOCK_SIZE - (count % BLOCK_SIZE);
+		if (amountToPad == 0) {
+			amountToPad = BLOCK_SIZE;
+		}
+		// 获得补位所用的字符
+		char padChr = chr(amountToPad);
+		String tmp = new String();
+		for (int index = 0; index < amountToPad; index++) {
+			tmp += padChr;
+		}
+		return tmp.getBytes(CHARSET);
+	}
+
+	/**
+	 * 删除解密后明文的补位字符
+	 * 
+	 * @param decrypted 解密后的明文
+	 * @return 删除补位字符后的明文
+	 */
+	static byte[] decode(byte[] decrypted) {
+		int pad = (int) decrypted[decrypted.length - 1];
+		if (pad < 1 || pad > 32) {
+			pad = 0;
+		}
+		return Arrays.copyOfRange(decrypted, 0, decrypted.length - pad);
+	}
+
+	/**
+	 * 将数字转化成ASCII码对应的字符，用于对明文进行补码
+	 * 
+	 * @param a 需要转化的数字
+	 * @return 转化得到的字符
+	 */
+	static char chr(int a) {
+		byte target = (byte) (a & 0xFF);
+		return (char) target;
+	}
+
+}

operation-backend/src/main/java/com/idiot/operationbackend/support/wechat/SHA1.java

@@ -0,0 +1,61 @@
+/**
+ * 对公众平台发送给公众账号的消息加解密示例代码.
+ * 
+ * @copyright Copyright (c) 1998-2014 Tencent Inc.
+ */
+
+// ------------------------------------------------------------------------
+
+package com.idiot.operationbackend.support.wechat;
+
+import java.security.MessageDigest;
+import java.util.Arrays;
+
+/**
+ * SHA1 class
+ *
+ * 计算公众平台的消息签名接口.
+ */
+class SHA1 {
+
+	/**
+	 * 用SHA1算法生成安全签名
+	 * @param token 票据
+	 * @param timestamp 时间戳
+	 * @param nonce 随机字符串
+	 * @param encrypt 密文
+	 * @return 安全签名
+	 * @throws AesException 
+	 */
+	public static String getSHA1(String token, String timestamp, String nonce, String encrypt) throws AesException
+			  {
+		try {
+			String[] array = new String[] { token, timestamp, nonce, encrypt };
+			StringBuffer sb = new StringBuffer();
+			// 字符串排序
+			Arrays.sort(array);
+			for (int i = 0; i < 4; i++) {
+				sb.append(array[i]);
+			}
+			String str = sb.toString();
+			// SHA1签名生成
+			MessageDigest md = MessageDigest.getInstance("SHA-1");
+			md.update(str.getBytes());
+			byte[] digest = md.digest();
+
+			StringBuffer hexstr = new StringBuffer();
+			String shaHex = "";
+			for (int i = 0; i < digest.length; i++) {
+				shaHex = Integer.toHexString(digest[i] & 0xFF);
+				if (shaHex.length() < 2) {
+					hexstr.append(0);
+				}
+				hexstr.append(shaHex);
+			}
+			return hexstr.toString();
+		} catch (Exception e) {
+			e.printStackTrace();
+			throw new AesException(AesException.COMPUTE_SIGNATURE_ERROR);
+		}
+	}
+}

operation-backend/src/main/java/com/idiot/operationbackend/support/wechat/WXBizMsgCrypt.java

@@ -0,0 +1,284 @@
+/**
+ * 对公众平台发送给公众账号的消息加解密示例代码.
+ * 
+ * @copyright Copyright (c) 1998-2014 Tencent Inc.
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * 针对org.apache.commons.codec.binary.Base64，
+ * 需要导入架包commons-codec-1.9（或commons-codec-1.8等其他版本）
+ * 官方下载地址：http://commons.apache.org/proper/commons-codec/download_codec.cgi
+ */
+package com.idiot.operationbackend.support.wechat;
+
+import java.nio.charset.Charset;
+import java.util.Arrays;
+import java.util.Map;
+import java.util.Random;
+
+import javax.crypto.Cipher;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
+
+import org.apache.commons.codec.binary.Base64;
+
+/**
+ * 提供接收和推送给公众平台消息的加解密接口(UTF8编码的字符串).
+ * <ol>
+ * 	<li>第三方回复加密消息给公众平台</li>
+ * 	<li>第三方收到公众平台发送的消息，验证消息的安全性，并对消息进行解密。</li>
+ * </ol>
+ * 说明：异常java.security.InvalidKeyException:illegal Key Size的解决方案
+ * <ol>
+ * 	<li>在官方网站下载JCE无限制权限策略文件（JDK7的下载地址：
+ *      http://www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html</li>
+ * 	<li>下载后解压，可以看到local_policy.jar和US_export_policy.jar以及readme.txt</li>
+ * 	<li>如果安装了JRE，将两个jar文件放到%JRE_HOME%\lib\security目录下覆盖原来的文件</li>
+ * 	<li>如果安装了JDK，将两个jar文件放到%JDK_HOME%\jre\lib\security目录下覆盖原来文件</li>
+ * </ol>
+ * @author admin
+ */
+public class WXBizMsgCrypt {
+	static Charset CHARSET = Charset.forName("utf-8");
+	Base64 base64 = new Base64();
+	byte[] aesKey;
+	String token;
+	String appId;
+
+	/**
+	 * 构造函数
+	 * @param token 公众平台上，开发者设置的token
+	 * @param encodingAesKey 公众平台上，开发者设置的EncodingAESKey
+	 * @param appId 公众平台appid
+	 * 
+	 * @throws AesException 执行失败，请查看该异常的错误码和具体的错误信息
+	 */
+	public WXBizMsgCrypt(String token, String encodingAesKey, String appId) throws AesException {
+		if (encodingAesKey.length() != 43) {
+			throw new AesException(AesException.ILLEGAL_AES_KEY);
+		}
+
+		this.token = token;
+		this.appId = appId;
+		aesKey = Base64.decodeBase64(encodingAesKey + "=");
+	}
+
+	// 生成4个字节的网络字节序
+	byte[] getNetworkBytesOrder(int sourceNumber) {
+		byte[] orderBytes = new byte[4];
+		orderBytes[3] = (byte) (sourceNumber & 0xFF);
+		orderBytes[2] = (byte) (sourceNumber >> 8 & 0xFF);
+		orderBytes[1] = (byte) (sourceNumber >> 16 & 0xFF);
+		orderBytes[0] = (byte) (sourceNumber >> 24 & 0xFF);
+		return orderBytes;
+	}
+
+	// 还原4个字节的网络字节序
+	int recoverNetworkBytesOrder(byte[] orderBytes) {
+		int sourceNumber = 0;
+		for (int i = 0; i < 4; i++) {
+			sourceNumber <<= 8;
+			sourceNumber |= orderBytes[i] & 0xff;
+		}
+		return sourceNumber;
+	}
+
+	// 随机生成16位字符串
+	String getRandomStr() {
+		String base = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+		Random random = new Random();
+		StringBuffer sb = new StringBuffer();
+		for (int i = 0; i < 16; i++) {
+			int number = random.nextInt(base.length());
+			sb.append(base.charAt(number));
+		}
+		return sb.toString();
+	}
+
+	/**
+	 * 对明文进行加密.
+	 * 
+	 * @param text 需要加密的明文
+	 * @return 加密后base64编码的字符串
+	 * @throws AesException aes加密失败
+	 */
+	public String encrypt(String randomStr, String text) throws AesException {
+		ByteGroup byteCollector = new ByteGroup();
+		byte[] randomStrBytes = randomStr.getBytes(CHARSET);
+		byte[] textBytes = text.getBytes(CHARSET);
+		byte[] networkBytesOrder = getNetworkBytesOrder(textBytes.length);
+		byte[] appidBytes = appId.getBytes(CHARSET);
+
+		// randomStr + networkBytesOrder + text + appid
+		byteCollector.addBytes(randomStrBytes);
+		byteCollector.addBytes(networkBytesOrder);
+		byteCollector.addBytes(textBytes);
+		byteCollector.addBytes(appidBytes);
+
+		// ... + pad: 使用自定义的填充方式对明文进行补位填充
+		byte[] padBytes = PKCS7Encoder.encode(byteCollector.size());
+		byteCollector.addBytes(padBytes);
+
+		// 获得最终的字节流, 未加密
+		byte[] unencrypted = byteCollector.toBytes();
+
+		try {
+			// 设置加密模式为AES的CBC模式
+			Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
+			SecretKeySpec keySpec = new SecretKeySpec(aesKey, "AES");
+			IvParameterSpec iv = new IvParameterSpec(aesKey, 0, 16);
+			cipher.init(Cipher.ENCRYPT_MODE, keySpec, iv);
+
+			// 加密
+			byte[] encrypted = cipher.doFinal(unencrypted);
+
+			// 使用BASE64对加密后的字符串进行编码
+			String base64Encrypted = base64.encodeToString(encrypted);
+
+			return base64Encrypted;
+		} catch (Exception e) {
+			e.printStackTrace();
+			throw new AesException(AesException.ILLEGAL_AES_KEY);
+		}
+	}
+
+	/**
+	 * 对密文进行解密.
+	 * 
+	 * @param text 需要解密的密文
+	 * @return 解密得到的明文
+	 * @throws AesException aes解密失败
+	 */
+	String decrypt(String text) throws AesException {
+		byte[] original;
+		try {
+			// 设置解密模式为AES的CBC模式
+			Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
+			SecretKeySpec key_spec = new SecretKeySpec(aesKey, "AES");
+			IvParameterSpec iv = new IvParameterSpec(Arrays.copyOfRange(aesKey, 0, 16));
+			cipher.init(Cipher.DECRYPT_MODE, key_spec, iv);
+
+			// 使用BASE64对密文进行解码
+			byte[] encrypted = Base64.decodeBase64(text);
+
+			// 解密
+			original = cipher.doFinal(encrypted);
+		} catch (Exception e) {
+			e.printStackTrace();
+			throw new AesException(AesException.DECRYPTAES_ERROR);
+		}
+
+		String xmlContent, from_appid;
+		try {
+			// 去除补位字符
+			byte[] bytes = PKCS7Encoder.decode(original);
+
+			// 分离16位随机字符串,网络字节序和AppId
+			byte[] networkOrder = Arrays.copyOfRange(bytes, 16, 20);
+
+			int xmlLength = recoverNetworkBytesOrder(networkOrder);
+
+			xmlContent = new String(Arrays.copyOfRange(bytes, 20, 20 + xmlLength), CHARSET);
+			from_appid = new String(Arrays.copyOfRange(bytes, 20 + xmlLength, bytes.length),
+					CHARSET);
+		} catch (Exception e) {
+			e.printStackTrace();
+			throw new AesException(AesException.ILLEGAL_BUFFER);
+		}
+
+		// appid不相同的情况
+		if (!from_appid.equals(appId)) {
+			throw new AesException(AesException.VALIDATE_APPID_ERROR);
+		}
+		return xmlContent;
+
+	}
+
+	/**
+	 * 将公众平台回复用户的消息加密打包.
+	 * <ol>
+	 * 	<li>对要发送的消息进行AES-CBC加密</li>
+	 * 	<li>生成安全签名</li>
+	 * 	<li>将消息密文和安全签名打包成xml格式</li>
+	 * </ol>
+	 * 
+	 * @param replyMsg 公众平台待回复用户的消息，xml格式的字符串
+	 * @param timeStamp 时间戳，可以自己生成，也可以用URL参数的timestamp
+	 * @param nonce 随机串，可以自己生成，也可以用URL参数的nonce
+	 * 
+	 * @return 加密后的可以直接回复用户的密文，包括msg_signature, timestamp, nonce, encrypt的xml格式的字符串
+	 * @throws AesException 执行失败，请查看该异常的错误码和具体的错误信息
+	 */
+	public String encryptMsg(String replyMsg, String timeStamp, String nonce) throws AesException {
+		String encrypt = encrypt(getRandomStr(), replyMsg);
+		if (timeStamp == "") {
+			timeStamp = Long.toString(System.currentTimeMillis());
+		}
+		String signature = SHA1.getSHA1(token, timeStamp, nonce, encrypt);
+		String result = XMLParse.generate(encrypt, signature, timeStamp, nonce);
+		return result;
+	}
+
+	/**
+	 * 检验消息的真实性，并且获取解密后的明文.
+	 * <ol>
+	 * 	<li>利用收到的密文生成安全签名，进行签名验证</li>
+	 * 	<li>若验证通过，则提取xml中的加密消息</li>
+	 * 	<li>对消息进行解密</li>
+	 * </ol>
+	 * 
+	 * @param msgSignature 签名串，对应URL参数的msg_signature
+	 * @param timeStamp 时间戳，对应URL参数的timestamp
+	 * @param nonce 随机串，对应URL参数的nonce
+	 * @param postData 密文，对应POST请求的数据
+	 * 
+	 * @return 解密后的原文
+	 * @throws AesException 执行失败，请查看该异常的错误码和具体的错误信息
+	 */
+	public String decryptMsg(String msgSignature, String timeStamp, String nonce, String postData)
+			throws AesException {
+
+		// 密钥，公众账号的app secret
+		// 提取密文
+		Object[] encrypt = XMLParse.extract(postData);
+
+		// 验证安全签名
+		String signature = SHA1.getSHA1(token, timeStamp, nonce, encrypt[1].toString());
+
+
+		if (!signature.equals(msgSignature)) {
+			throw new AesException(AesException.VALIDATE_SIGNATURE_ERROR);
+		}
+
+		// 解密
+		String result = decrypt(encrypt[1].toString());
+		return result;
+	}
+
+
+
+	/**
+	 * 验证URL
+	 * @param msgSignature 签名串，对应URL参数的msg_signature
+	 * @param timeStamp 时间戳，对应URL参数的timestamp
+	 * @param nonce 随机串，对应URL参数的nonce
+	 * @param echoStr 随机串，对应URL参数的echostr
+	 * 
+	 * @return 解密之后的echostr
+	 * @throws AesException 执行失败，请查看该异常的错误码和具体的错误信息
+	 */
+	public String verifyUrl(String msgSignature, String timeStamp, String nonce, String echoStr)
+			throws AesException {
+		String signature = SHA1.getSHA1(token, timeStamp, nonce, echoStr);
+
+		if (!signature.equals(msgSignature)) {
+			throw new AesException(AesException.VALIDATE_SIGNATURE_ERROR);
+		}
+
+		String result = decrypt(echoStr);
+		return result;
+	}
+
+}

operation-backend/src/main/java/com/idiot/operationbackend/support/wechat/XMLParse.java

@@ -0,0 +1,72 @@
+/**
+ * 对公众平台发送给公众账号的消息加解密示例代码.
+ * 
+ * @copyright Copyright (c) 1998-2014 Tencent Inc.
+ */
+
+// ------------------------------------------------------------------------
+
+package com.idiot.operationbackend.support.wechat;
+
+import java.io.StringReader;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
+import org.xml.sax.InputSource;
+
+/**
+ * XMLParse class
+ *
+ * 提供提取消息格式中的密文及生成回复消息格式的接口.
+ */
+class XMLParse {
+
+	/**
+	 * 提取出xml数据包中的加密消息
+	 * @param xmltext 待提取的xml字符串
+	 * @return 提取出的加密消息字符串
+	 * @throws AesException 
+	 */
+	public static Object[] extract(String xmltext) throws AesException     {
+		Object[] result = new Object[3];
+		try {
+			DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
+			DocumentBuilder db = dbf.newDocumentBuilder();
+			StringReader sr = new StringReader(xmltext);
+			InputSource is = new InputSource(sr);
+			Document document = db.parse(is);
+
+			Element root = document.getDocumentElement();
+			NodeList nodelist1 = root.getElementsByTagName("Encrypt");
+			NodeList nodelist2 = root.getElementsByTagName("ToUserName");
+			result[0] = 0;
+			result[1] = nodelist1.item(0).getTextContent();
+			result[2] = nodelist2.item(0).getTextContent();
+			return result;
+		} catch (Exception e) {
+			e.printStackTrace();
+			throw new AesException(AesException.PARSE_XML_ERROR);
+		}
+	}
+
+	/**
+	 * 生成xml消息
+	 * @param encrypt 加密后的消息密文
+	 * @param signature 安全签名
+	 * @param timestamp 时间戳
+	 * @param nonce 随机字符串
+	 * @return 生成的xml字符串
+	 */
+	public static String generate(String encrypt, String signature, String timestamp, String nonce) {
+
+		String format = "<xml>\n" + "<Encrypt><![CDATA[%1$s]]></Encrypt>\n"
+				+ "<MsgSignature><![CDATA[%2$s]]></MsgSignature>\n"
+				+ "<TimeStamp>%3$s</TimeStamp>\n" + "<Nonce><![CDATA[%4$s]]></Nonce>\n" + "</xml>";
+		return String.format(format, encrypt, signature, timestamp, nonce);
+
+	}
+}

operation-backend/src/main/resources/application-dev.yml

@@ -47,3 +47,14 @@ kaptcha:
     to: white
   border:
     enabled: false
+wechat:
+  # 微信第三方平台 (独立部署需要自主申请)
+  platform:
+    # appid
+    appId: xxx
+    # 授权回调url
+    authDomain: https:xxxxxx/wechat/authCallBack
+    # 加解密key
+    secret: xxxxx
+    # 开发平台配置token
+    token: xxxxxx

operation-backend/src/test/java/com/idiot/operationbackend/OperationBackendApplicationTests.java

@@ -1,7 +1,23 @@
 package com.idiot.operationbackend;
 
+import com.idiot.operationbackend.support.wechat.AesException;
+import com.idiot.operationbackend.support.wechat.WXBizMsgCrypt;
 import org.junit.jupiter.api.Test;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import java.io.IOException;
+import java.io.StringReader;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.fail;
 
 @SpringBootTest
 class OperationBackendApplicationTests {
@@ -10,4 +26,119 @@ class OperationBackendApplicationTests {
     void contextLoads() {
     }
 
+    String encodingAesKey = "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFG";
+    String token = "pamtest";
+    String timestamp = "1409304348";
+    String nonce = "xxxxxx";
+    String appId = "wxb11529c136998cb6";
+    String replyMsg = "我是中文abcd123";
+    String xmlFormat = "<xml><ToUserName><![CDATA[toUser]]></ToUserName><Encrypt><![CDATA[%1$s]]></Encrypt></xml>";
+    String afterAesEncrypt = "jn1L23DB+6ELqJ+6bruv21Y6MD7KeIfP82D6gU39rmkgczbWwt5+3bnyg5K55bgVtVzd832WzZGMhkP72vVOfg==";
+    String randomStr = "aaaabbbbccccdddd";
+
+    String replyMsg2 = "<xml><ToUserName><![CDATA[oia2Tj我是中文jewbmiOUlr6X-1crbLOvLw]]></ToUserName><FromUserName><![CDATA[gh_7f083739789a]]></FromUserName><CreateTime>1407743423</CreateTime><MsgType><![CDATA[video]]></MsgType><Video><MediaId><![CDATA[eYJ1MbwPRJtOvIEabaxHs7TX2D-HV71s79GUxqdUkjm6Gs2Ed1KF3ulAOA9H1xG0]]></MediaId><Title><![CDATA[testCallBackReplyVideo]]></Title><Description><![CDATA[testCallBackReplyVideo]]></Description></Video></xml>";
+    String afterAesEncrypt2 = "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";
+
+
+
+    @Test
+    public void testNormal() throws ParserConfigurationException, SAXException, IOException {
+        try {
+            WXBizMsgCrypt pc = new WXBizMsgCrypt(token, encodingAesKey, appId);
+            String afterEncrpt = pc.encryptMsg(replyMsg2, timestamp, nonce);
+            System.out.println(afterEncrpt);
+            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
+            DocumentBuilder db = dbf.newDocumentBuilder();
+            StringReader sr = new StringReader(afterEncrpt);
+            InputSource is = new InputSource(sr);
+            Document document = db.parse(is);
+
+            Element root = document.getDocumentElement();
+            NodeList nodelist1 = root.getElementsByTagName("Encrypt");
+            NodeList nodelist2 = root.getElementsByTagName("MsgSignature");
+
+            String encrypt = nodelist1.item(0).getTextContent();
+            String msgSignature = nodelist2.item(0).getTextContent();
+            String fromXML = String.format(xmlFormat, encrypt);
+
+            // 第三方收到公众号平台发送的消息
+            String afterDecrpt = pc.decryptMsg(msgSignature, timestamp, nonce, fromXML);
+            System.out.println(afterDecrpt);
+            assertEquals(replyMsg2, afterDecrpt);
+        } catch (AesException e) {
+            fail("正常流程，怎么就抛出异常了？？？？？？");
+        }
+    }
+
+    @Test
+    public void testAesEncrypt() {
+        try {
+            WXBizMsgCrypt pc = new WXBizMsgCrypt(token, encodingAesKey, appId);
+            assertEquals(afterAesEncrypt, pc.encrypt(randomStr, replyMsg));
+        } catch (AesException e) {
+            e.printStackTrace();
+            fail("no异常");
+        }
+    }
+
+    @Test
+    public void testAesEncrypt2() {
+        try {
+            WXBizMsgCrypt pc = new WXBizMsgCrypt(token, encodingAesKey, appId);
+            assertEquals(afterAesEncrypt2, pc.encrypt(randomStr, replyMsg2));
+
+        } catch (AesException e) {
+            e.printStackTrace();
+            fail("no异常");
+        }
+    }
+
+    @Test
+    public void testIllegalAesKey() {
+        try {
+            new WXBizMsgCrypt(token, "abcde", appId);
+        } catch (AesException e) {
+            assertEquals(AesException.ILLEGAL_AES_KEY, e.getCode());
+            return;
+        }
+        fail("错误流程不抛出异常？？？");
+    }
+
+    @Test
+    public void testValidateSignatureError() throws ParserConfigurationException, SAXException,
+            IOException {
+        try {
+            WXBizMsgCrypt pc = new WXBizMsgCrypt(token, encodingAesKey, appId);
+            String afterEncrpt = pc.encryptMsg(replyMsg, timestamp, nonce);
+            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
+            DocumentBuilder db = dbf.newDocumentBuilder();
+            StringReader sr = new StringReader(afterEncrpt);
+            InputSource is = new InputSource(sr);
+            Document document = db.parse(is);
+
+            Element root = document.getDocumentElement();
+            NodeList nodelist1 = root.getElementsByTagName("Encrypt");
+
+            String encrypt = nodelist1.item(0).getTextContent();
+            String fromXML = String.format(xmlFormat, encrypt);
+            pc.decryptMsg("12345", timestamp, nonce, fromXML); // 这里签名错误
+        } catch (AesException e) {
+            assertEquals(AesException.VALIDATE_SIGNATURE_ERROR, e.getCode());
+            return;
+        }
+        fail("错误流程不抛出异常？？？");
+    }
+
+    @Test
+    public void testVerifyUrl() throws AesException {
+        WXBizMsgCrypt wxcpt = new WXBizMsgCrypt("QDG6eK",
+                "jWmYm7qr5nMoAUwZRjGtBxmz3KA1tkAj3ykkR6q2B2C", "wx5823bf96d3bd56c7");
+        String verifyMsgSig = "5c45ff5e21c57e6ad56bac8758b79b1d9ac89fd3";
+        String timeStamp = "1409659589";
+        String nonce = "263014780";
+        String echoStr = "P9nAzCzyDtyTWESHep1vC5X9xho/qYX3Zpb4yKa9SKld1DsH3Iyt3tP3zNdtp+4RPcs8TgAE7OaBO+FZXvnaqQ==";
+        wxcpt.verifyUrl(verifyMsgSig, timeStamp, nonce, echoStr);
+        // 只要不抛出异常就好
+    }
+
 }