添加签名文件

Author: techird

com.qcloud.weapp.sdk/src/com/qcloud/weapp/Hash.java

@@ -0,0 +1,41 @@
+package com.qcloud.weapp;
+
+import java.security.MessageDigest;
+
+public class Hash {
+ 
+	private static final char[] HEX_DIGITS = { '0', '1', '2', '3', '4', '5',
+			'6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
+ 
+	public static String compute(String str, String algorithm) {
+		if (str == null) {
+			return null;
+		}
+		try {
+			MessageDigest messageDigest = MessageDigest.getInstance(algorithm);
+			messageDigest.update(str.getBytes());
+			return getHashText(messageDigest.digest());
+		} catch (Exception e) {
+			throw new RuntimeException(e);
+		}
+ 
+	}
+	
+	public static String sha1(String str) {
+		return compute(str, "SHA1");
+	}
+ 
+	public static String md5(String str) {
+		return compute(str, "MD5");
+	}
+ 
+	private static String getHashText(byte[] bytes) {
+		int len = bytes.length;
+		StringBuilder buf = new StringBuilder(len * 2);
+		for (int j = 0; j < len; j++) {
+			buf.append(HEX_DIGITS[(bytes[j] >> 4) & 0x0f]);
+			buf.append(HEX_DIGITS[bytes[j] & 0x0f]);
+		}
+		return buf.toString();
+	}
+}

com.qcloud.weapp.sdk/src/com/qcloud/weapp/tunnel/TunnelAPI.java

@@ -1,8 +1,5 @@
 package com.qcloud.weapp.tunnel;
 
-import java.io.StringWriter;
-import java.io.UnsupportedEncodingException;
-
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;