微信校验接口

Controller:
/**
* 校验
* @param request
* @param response
* @throws Exception
*/
@RequestMapping(value = "wx_check",method = {RequestMethod.GET})
public void wxCheck(HttpServletRequest request, HttpServletResponse response) throws Exception{
String signature = request.getParameter("signature");
String timestamp = request.getParameter("timestamp");
String nonce = request.getParameter("nonce");
String echostr = request.getParameter("echostr");

System.out.print(echostr);
PrintWriter out = response.getWriter();
if (WeiXinCheck.weiXinCheckSignature(signature,timestamp,nonce)){
out.print(echostr);
}
}
WeiXinCheck:
private static final String token = "admin";
/**
* 签名校验
* @param signature
* @param timestamp
* @param nonce
* @return
*/
public static boolean weiXinCheckSignature(String signature,String timestamp,String nonce){
String[] arr = new String[]{token,timestamp,nonce};
//排序
Arrays.sort(arr);

//生成字符串
StringBuffer content = new StringBuffer();
for (int i =0; i<arr.length;i++){
content.append(arr[i]);
}

//sha1加密
String temp = getSha1(content.toString());
return temp.equals(signature);
}
/**
* sha1加密
* @param str
* @return
*/
public static String getSha1(String str) {
if (null == str || str.length() == 0) {
return null;
}
char[] hexDigits = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'a', 'b', 'c', 'd', 'e', 'f'};
try {
MessageDigest mdTemp = MessageDigest.getInstance("SHA1");
mdTemp.update(str.getBytes("UTF-8"));

byte[] md = mdTemp.digest(http://www.amjmh.com/v/BIBRGZ_558768/);
int j = md.length;
char[] buf = new char[j * 2];
int k = 0;
for (int i = 0; i < j; i++) {
byte byte0 = md[i];
buf[k++] = hexDigits[byte0 >>> 4 & 0xf];
buf[k++] = hexDigits[byte0 & 0xf];
}
return new String(buf);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
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