Java split 分割字符串（分隔符如：* ^ ： | , .）及注意点要转义

灰太狼 2023-06-10 06:25 25阅读 0赞

### split 分割 字符串（分隔符如：\* ^ ： | , .） 及注意点 ###

**split表达式，其实就是一个正则表达式。【 \* ^ | 】等符号在正则表达式中属于一种有特殊含义的字符，如果使用此种字符作为分隔符，必须使用转义符即【 \\\\ 】加以转义。**

String address=”上海|上海市|闵行区|吴中路”;
    String[] splitAddress=address.split(“\\|”); //如果以竖线为分隔符，则split的时候需要加上两个斜杠【\\】进行转义
    System.out.println(splitAddress[0]+splitAddress[1]+splitAddress[2]+splitAddress[3]);
        
    String address=”上海*上海市*闵行区*吴中路”;
    String[] splitAddress=address.split(“\\*”);
    System.out.println(splitAddress[0]+splitAddress[1]+splitAddress[2]+splitAddress[3]);
        
    String address=”上海:上海市:闵行区:吴中路”;
    String[] splitAddress=address.split(“\\:”);
    System.out.println(splitAddress[0]+splitAddress[1]+splitAddress[2]+splitAddress[3]);
    
    String address=”上海.上海市.闵行区.吴中路”;
    String[] splitAddress=address.split(“\\.”);
    System.out.println(splitAddress[0]+splitAddress[1]+splitAddress[2]+splitAddress[3]);
        
    String address=”上海^上海市^闵行区^吴中路”;
    String[] splitAddress=address.split(“\\^”);
    System.out.println(splitAddress[0]+splitAddress[1]+splitAddress[2]+splitAddress[3]);
        
    String address=”上海@上海市@闵行区@吴中路”;
    String[] splitAddress=address.split(“@”);
    System.out.println(splitAddress[0]+splitAddress[1]+splitAddress[2]+splitAddress[3]);
        
    String address=”上海,上海市,闵行区,吴中路”;
    String[] splitAddress=address.split(“,”);
    System.out.println(splitAddress[0]+splitAddress[1]+splitAddress[2]+splitAddress[3]);

**如果使用多个分隔符则需要借助 | 符号，但需要转义符的仍然要加上分隔符进行处理。**

String address=”上海^上海市@闵行区#吴中路”;
    String[] splitAddress=address.split(“\\^|@|#”);
    System.out.println(splitAddress[0]+splitAddress[1]+splitAddress[2]+splitAddress[3]);