求代码检查
package com.weixin.util;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
public class CheckUtil {
private static final String token = "Imooc";
public static boolean checkSignature(String signature, String timestamp, String nonce) {
String[] args = new String[] { token, timestamp, nonce };
Arrays.sort(args);
StringBuffer content = new StringBuffer();
for (int i = 0; i < args.length; i++) {
content.append(args[i]);
}
// 加密
String temp = getSha1(content.toString());
return temp.equals(signature);
}
public static String getSha1(String str) {
if (str == null || 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();
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 (NoSuchAlgorithmException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
}老师这里面的代码哪里错了,绑定微信公众号时,老是报token错误,我token确定是一直的,加密后的值与signature我debug查看是不一致的,但我对照你的代码,看不错问题