* login process

* register page
* post query
* get query

src/website/HttpTools.java

@@ -0,0 +1,19 @@
+package website;
+
+import java.math.BigInteger;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+public class HttpTools {
+    public static String StringToMD5(String value) {
+        try {
+            MessageDigest md = MessageDigest.getInstance("MD5");
+            byte[] messageDigest = md.digest(value.getBytes());
+            BigInteger no = new BigInteger(1, messageDigest);
+            return no.toString(16);
+        } catch (NoSuchAlgorithmException e) {
+            e.printStackTrace();
+            return "";
+        }
+    }
+}