Java字符串跟ASCII码互转

Posted 2020-09-29 陈扬天

1.由于项目中遇到，在服务器端起的jar包程序，给前台发消息后，前段收到的消息出现乱码情况，所以采取在后才发消息前先把消息字符串转成ASCII码再发往前台，前台采取在收到后台消息先把ASCII码转成字符串的解决方案进行解决。

 1）将字符串转成ASCII的Java方法

 

public static String stringToAscii(String value)  
{  
    StringBuffer sbu = new StringBuffer();  
    char[] chars = value.toCharArray();   
    for (int i = 0; i < chars.length; i++) {  
        if(i != chars.length - 1)  
        {  
            sbu.append((int)chars[i]).append(",");  
        }  
        else {  
            sbu.append((int)chars[i]);  
        }  
    }  
    return sbu.toString();  
}  

2）将ASCII转成字符串的java方法

 

public static String asciiToString(String value)  
{  
    StringBuffer sbu = new StringBuffer();  
    String[] chars = value.split(",");  
    for (int i = 0; i < chars.length; i++) {  
        sbu.append((char) Integer.parseInt(chars[i]));  
    }  
    return sbu.toString();  
}  

main方法测试：

public static void main(String[] args) {
        
              String str = "{name:1234,password:4444}";
              String asciiResult = stringToAscii(str);
              System.out.println(asciiResult);
              String stringResult = asciiToString(asciiResult);
              System.out.println(stringResult);
             }
    

输出：

123,110,97,109,101,58,49,50,51,52,44,112,97,115,115,119,111,114,100,58,52,52,52,52,125
{name:1234,password:4444}