Java微信公众号安全模式消息解密

本文实例为大家分享了Java微信公众号安全模式消息解密的具体代码，供大家参考，具体内容如下

1.微信公众平台下载解密工具,导入项目中,根据demo解密消息,解密工具官方下载地址：点击打开链接

public static String streamToString(HttpServletRequest request) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(request.getInputStream()));
StringBuilder sb = new StringBuilder();
String line;
try {
while ((line = reader.readLine()) != null) {
sb.append(line);
}
} catch (IOException e) {
e.printStackTrace();
}
return sb.toString();
}

/**
* xml转为map集合
*
* @param request
* @param msg
* @return
* @throws IOException
* @throws DocumentException
*/
public static Map<String, String> xmlToMap(HttpServletRequest request, Message msg) throws Exception {
SAXReader reader = new SAXReader();
String token = "";
String encodingAesKey = "";
String appId = "";
//获取加密消息xml字符串
/* String format = "<xml><ToUserName><![CDATA[toUser]]></ToUserName><Encrypt><![CDATA[%1$s]]></Encrypt></xml>";
Document document = reader.read(request.getInputStream());
Element rootElement = document.getRootElement();
Element encrypt = rootElement.element("Encrypt");*/
//  String fromXML = String.format(format, encrypt.getText());
String fromXML = streamToString(request);
//解密消息
WXBizMsgCrypt pc = new WXBizMsgCrypt(token, encodingAesKey, appId);
//获得解密消息
String result = pc.decryptMsg(msg.getMsg_signature(), msg.getTimestamp(), msg.getNonce(), fromXML);
Map<String, String> map = new HashMap<>(6);
//将解密后的消息转为xml
Document doc = DocumentHelper.parseText(result);
Element root = doc.getRootElement();
List<Element> list = root.elements();
for (Element e : list) {
map.put(e.getName(), e.getText());
}
return map;
}

Message实体类

package com.caisin.weixin.domain;

import lombok.Data;

@Data
public class Message {
private String signature;
private String timestamp;
private String nonce;
private String openid;
private String msg_signature;
private String encrypt_type;
}

2.将JDK中 jdk\jre\lib\security\policy\unlimited目录中local_policy.jar和US_export_policy.jar两个文件拷贝到 jdk\jre\lib\security目录下

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。

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