JAVA 微信-基本验证

微信公众平台信息配置：



具体实现，废话不多说直接贴代码：
WeixinController:
package com.qianchong.weixin.controller;

import com.qianchong.weixin.utils.CheckUtil;
import com.qianchong.weixin.vo.WeixinCheckVo;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
* @description: 微信验证
* @author: atom
* @create: 2018-01-17 11:44
**/
@RestController
@RequestMapping("weixin")
public class WeixinController {

@RequestMapping("index")
public void index(WeixinCheckVo weixinCheckVo, HttpServletResponse response) throws IOException {
//通过检验signature对请求进行校验，若校验成功则原样返回echostr，表示接入成功，否则接入失败
if (CheckUtil.checkSignature(weixinCheckVo.getSignature(), weixinCheckVo.getTimestamp(), weixinCheckVo.getNonce())) {
response.getWriter().print(weixinCheckVo.getEchostr());
}
}

}
WeixinCheckVo:package com.qianchong.weixin.vo;

/**
* @author: atom
* @create: 2018-01-18 09:18
**/
public class WeixinCheckVo {

/**
* 微信加密签名
*/
private String signature;

/**
* 时间戳
*/
private String timestamp;

/**
* 随机数
*/
private String nonce;

/**
* 随机字符串
*/
private String echostr;

public String getSignature() {
return signature;
}

public void setSignature(String signature) {
this.signature = signature;
}

public String getTimestamp() {
return timestamp;
}

public void setTimestamp(String timestamp) {
this.timestamp = timestamp;
}

public String getNonce() {
return nonce;
}

public void setNonce(String nonce) {
this.nonce = nonce;
}

public String getEchostr() {
return echostr;
}

public void setEchostr(String echostr) {
this.echostr = echostr;
}
}

验证工具类，CheckUtils:package com.qianchong.weixin.utils;

import org.apache.commons.lang3.StringUtils;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/**
* @description: 验证签名信息
* @author: atom
* @create: 2018-01-17 12:34
**/
public class CheckUtil {

/**
* weixin绑定token信息
*/
private static String token = "你的token";

/**
* 验证签名
*
* @param signature
* @param timestamp
* @param nonce
* @return
*/
public static boolean checkSignature(String signature, String timestamp, String nonce) {
if(StringUtils.isBlank(signature) || StringUtils.isBlank(timestamp) || StringUtils.isBlank(nonce)){
return false;
}
String[] arr = new String[] { token, timestamp, nonce };
sort(arr);
StringBuilder content = new StringBuilder();
for (int i = 0; i < arr.length; i++) {
content.append(arr[i]);
}
String tmpStr = null;
try {
MessageDigest md = MessageDigest.getInstance("SHA-1");
byte[] digest = md.digest(content.toString().getBytes());
tmpStr = byteToStr(digest);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return tmpStr != null ? tmpStr.equals(signature.toUpperCase()) : false;
}

/**
* 将字节数组转换为十六进制字符串
*
* @param byteArray
* @return
*/
private static String byteToStr(byte[] byteArray) {
String strDigest = "";
for (int i = 0; i < byteArray.length; i++) {
strDigest += byteToHexStr(byteArray[i]);
}
return strDigest;
}

/**
* 将字节转换为十六进制字符串
*
* @param mByte
* @return
*/
private static String byteToHexStr(byte mByte) {
char[] Digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
char[] tempArr = new char[2];
tempArr[0] = Digit[(mByte >>> 4) & 0X0F];
tempArr[1] = Digit[mByte & 0X0F];
String s = new String(tempArr);
return s;
}

/**
* 字典排序
* @param array
*/
public static void sort(String[] array) {
for (int i = 0; i < array.length - 1; i++) {
for (int j = i + 1; j < array.length; j++) {
if (array[j].compareTo(array[i]) < 0) {
String temp = array[i];
array[i] = array[j];
array[j] = temp;
}
}
}
}
}
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