使用 URLDecoder 和 URLEncoder 对统一认证中的http地址转义字符进行处理

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

public class a {

    public static void main(String[] args) throws UnsupportedEncodingException 
    {
        //存在转义字符，进行转换后显示正常。
        String str="http%3A%2F%2F183.196.225.226%3A6601%2Fbase-server%2Fa";
        System.out.println(URLDecoder.decode(str,"UTF-8"));
        
        
        //不存在转义字符，进行转换后也没有问题。
        String str_db="http://183.196.225.226:6601";
        System.out.println(URLDecoder.decode(str_db,"UTF-8"));
        
　　　　 //显示结果:
　　　　 //  http://183.196.225.226:6601/base-server/a
　　　　 //  http://183.196.225.226:6601

        //=======================================================================================
        /*
        //来点复杂的
        String strTest = "?=abc?中%1&2<3,4>";
        strTest = URLEncoder.encode(strTest, "UTF-8");
        System.out.println(strTest);
        strTest = URLDecoder.decode(strTest,"UTF-8");
        System.out.println(strTest);
        System.out.println("采用UTF-8字符集进行解码:");
        String keyWord = URLDecoder.decode("%E5%A4%A9%E6%B4%A5%E5%A4%A7%E5%AD%A6+Rico", "UTF-8");
        System.out.println(keyWord);
        System.out.println("\n 采用GBK字符集进行解码:");
        System.out.println(URLDecoder.decode("%E5%A4%A9%E6%B4%A5%E5%A4%A7%E5%AD%A6+Rico", "GBK"));
        
     // 将普通字符串转换成application/x-www-form-urlencoded字符串
        System.out.println("\n 采用utf-8字符集:");
        String urlStr = URLEncoder.encode("天津大学", "utf-8");
        System.out.println(urlStr);
        System.out.println("\n 采用GBK字符集:");
        String urlStr2 = URLEncoder.encode("天津大学", "GBK");
        System.out.println(urlStr2);
        */
    }
}