为什么要进行URL编码

public class URLTest {
    public static void main(String[] args) throws UnsupportedEncodingException{
        String name = "张三";
        
        /*
         * 比特
         * -27,-68,-96,-28,-72,-119
         * URL
         * %E5%BC%A0%E4%B8%89
         */
        byte[] bytes = name.getBytes();
        for (byte x : bytes){
            System.out.print(x + ",");
        }
        System.out.println();
        
        String s = URLEncoder.encode(name, "UTF-8");
        System.out.println(s);
    }
}

-27,-68,-96,-28,-72,-119,
%E5%BC%A0%E4%B8%89

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