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

Posted 2020-12-16 That_Jay

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]);