公共类
package com.bdqn.util;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
public class SignUtil {
private final static String TOKEN= "填写在公众号设置的token";
/**
* 校验签名
* @param signature 签名
* @param timestamp 时间戳
* @param nonce 随机数
* @return 布尔值
*/
public static boolean checkSignature(String signature,String timestamp,String nonce){
String checktext = null;
if (null != signature) {
//对ToKen,timestamp,nonce 按字典排序
String[] paramArr = new String[]{TOKEN,timestamp,nonce};
Arrays.sort(paramArr);
//将排序后的结果拼成一个字符串
String content = paramArr[0].concat(paramArr[1]).concat(paramArr[2]);
try {
MessageDigest md = MessageDigest.getInstance("SHA-1");
//对接后的字符串进行sha1加密
byte[] digest = md.digest(content.toString().getBytes());
checktext = byteToStr(digest);
} catch (NoSuchAlgorithmException e){
e.printStackTrace();
}
}
//将加密后的字符串与signature进行对比
return checktext !=null ? checktext.equals(signature.toUpperCase()) : false;
}
/**
* 将字节数组转化我16进制字符串
* @param byteArrays 字符数组
* @return 字符串
*/
private static String byteToStr(byte[] byteArrays){
String str = "";
for (int i = 0; i < byteArrays.length; i++) {
str += byteToHexStr(byteArrays[i]);
}
return str;
}
/**
* 将字节转化为十六进制字符串
* @param myByte 字节
* @return 字符串
*/
private static String byteToHexStr(byte myByte) {
char[] Digit = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
char[] tampArr = new char[2];
tampArr[0] = Digit[(myByte >>> 4) & 0X0F];
tampArr[1] = Digit[myByte & 0X0F];
String str = new String(tampArr);
return str;
}
}
注释的地方为servlet开发方式,解开后参数修改为HttpServletRequest和HttpServletResponse
import org.apache.commons.lang3.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Arrays;
@RestController
public class TokenController {
@RequestMapping("checkToken")
public String token(String signature,String timestamp,String nonce,String echostr)throws IOException {
//token验证代码段
try{
System.out.println("请求已到达,开始校验token");
if (StringUtils.isNotBlank(signature)) {
/* String signature = request.getParameter("signature");
String timestamp = request.getParameter("timestamp");
String nonce = request.getParameter("nonce");
String echostr = request.getParameter("echostr");*/
// System.out.println("signature[{}], timestamp[{}], nonce[{}], echostr[{}]", signature, timestamp, nonce, echostr);
if (SignUtil.checkSignature(signature, timestamp, nonce)) {
// System.out.println("数据源为微信后台,将echostr[{}]返回!", echostr);
// response.getOutputStream().println(echostr);
return echostr;
}
}
}catch (Exception e){
System.out.println("校验出错");
e.printStackTrace();
}
return null;
}
}