URLEncoder URLDecoder

package com.test.javaSe02;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;

public class CodeTestDemo {
public static void main(String[] args) throws UnsupportedEncodingException {
	String str="你还好吗？";
	String encoder=URLEncoder.encode(str,"gbk");
	System.out.println(encoder);
	String decode=URLDecoder.decode(encoder,"gbk");
	System.out.println(decode);
	
}
}