1、配置springMVC环境。
2、验证token
说明:在微信公众号测试平台中填写了正确的url、token后,微信会向填写的url地址发送一条get请求。该请求带有signature、timestamp、nonce、echostr参数。服务端返回echostr参数,则表示token验证成功。
@Controller
public class HelloWorldController {
/**
* 微信消息接收和token验证
* @param model
* @param request
* @param response
* @throws IOException
*/
@RequestMapping("/hello")
public void hello(Model model, HttpServletRequest request,HttpServletResponse response) throws IOException {
boolean isGet = request.getMethod().toLowerCase().equals("get");
PrintWriter print;
if (isGet) {
// 微信加密签名
String signature = request.getParameter("signature");
// 时间戳
String timestamp = request.getParameter("timestamp");
// 随机数
String nonce = request.getParameter("nonce");
// 随机字符串
String echostr = request.getParameter("echostr");
// 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 (signature != null && CheckoutUtil.checkSignature(signature, timestamp, nonce)) {
try {
print = response.getWriter();
print.write(echostr);
print.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
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请求校验工具类
public class CheckoutUtil {
// 与接口配置信息中的Token要一致
private static String token = "Javen";
/**
* 验证签名
*
* @param signature
* @param timestamp
* @param nonce
* @return
*/
public static boolean checkSignature(String signature, String timestamp, String nonce) {
String[] arr = new String[] { token, timestamp, nonce };
// 将token、timestamp、nonce三个参数进行字典序排序
// Arrays.sort(arr);
sort(arr);
StringBuilder content = new StringBuilder();
for (int i = 0; i < arr.length; i++) {
content.append(arr[i]);
}
MessageDigest md = null;
String tmpStr = null;
try {
md = MessageDigest.getInstance("SHA-1");
// 将三个参数字符串拼接成一个字符串进行sha1加密
byte[] digest = md.digest(content.toString().getBytes());
tmpStr = byteToStr(digest);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
content = null;
// 将sha1加密后的字符串可与signature对比,标识该请求来源于微信
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;
}
public static void sort(String a[]) {
for (int i = 0; i < a.length - 1; i++) {
for (int j = i + 1; j < a.length; j++) {
if (a[j].compareTo(a[i]) < 0) {
String temp = a[i];
a[i] = a[j];
a[j] = temp;
}
}
}
}
}
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3、在微信公众号测试平台中,填写url、token
1、url为项目路径且必须可以通过外网80端口访问
2、token必须和项目中token一致
2、token必须和项目中token一致