Java字符串分割给人意想不到的结果

我有这个字符串Java字符串分割给人意想不到的结果

String x = "2013-04-17T08:00:00.001,41.14806,-9.58972,-13.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-22.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-31.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-40.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-49.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-58.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-64.0,0.0,0.0,-20.0,4";

如果我做分裂这样String vec2 [] = x.split(",");输出将是这个

2013-04-17T08:00:00.001 
41.14806 
-9.58972 
-13.0 
0.0 
0.0 
-20.0

等。

如果我做这样String vec2[] = x.split("|");输出分割是这样的：

等。

而且我希望类似这样的东西：

2013-04-17T08:00:00.001,41.14806,-9.58972,-13.0,0.0,0.0,-20.0,4 
    2013-04-17T08:00:00.001,41.14806,-9.58972,-22.0,0.0,0.0,-20.0,4 
    and so on

任何想法有什么不对？

来源

2013-04-17 unpix

http://stackoverflow.com/questions/1433115/what-is-the-proper-way-of-inserting-的可能重复a-pipe-into-a-java-pattern-expression – Ankit

'String ** vec2 []'在Java中是无效标识符！ – NINCOMPOOP

@NoobUnChained我认为这是因为他想让它变成粗体。 – Maroun

你需要躲避|：

String vec2[] = x.split("\\|");

这是因为参数split()是正则表达式不是一个字符串。

来源

2013-04-17 08:59:24 Maroun

分割参数是一个正则表达式，“|”人物有特殊的含义。尝试转义它\\|。

来源

2013-04-17 08:59:55

String.split(String)拆分正则表达式，而不是字符。正如您在summary of Java regular expression constructs中看到的那样，|的功能如同or结构。

如果要分割|字符，可能需要使用\|将其转义。请注意，要在Java String中转义它，您还需要避开反斜杠：\\|。

来源

2013-04-17 09:00:36 mthmulders

问题是，split(String regex)需要正则表达式作为参数。管道（|）是一个特殊字符在正则表达式，因此必须进行转义：

 String x = "2013-04-17T08:00:00.001,41.14806,-9.58972,-13.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-22.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-31.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-40.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-49.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-58.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-64.0,0.0,0.0,-20.0,4"; 
     String[] arr = x.split("\\|"); 
     for(String str : arr) 
     { 
      System.out.println(str); 
     }

产量：

2013-04-17T08:00:00.001,41.14806,-9.58972,-13.0,0.0,0.0,-20.0,4 
2013-04-17T08:00:00.001,41.14806,-9.58972,-22.0,0.0,0.0,-20.0,4 
2013-04-17T08:00:00.001,41.14806,-9.58972,-31.0,0.0,0.0,-20.0,4 
2013-04-17T08:00:00.001,41.14806,-9.58972,-40.0,0.0,0.0,-20.0,4 
2013-04-17T08:00:00.001,41.14806,-9.58972,-49.0,0.0,0.0,-20.0,4 
2013-04-17T08:00:00.001,41.14806,-9.58972,-58.0,0.0,0.0,-20.0,4 
2013-04-17T08:00:00.001,41.14806,-9.58972,-64.0,0.0,0.0,-20.0,4

来源

2013-04-17 09:00:50 npinti

试试这个

String vec2[] = x.split("\\|");

来源

2013-04-17 09:00:58

你需要躲避|字符，因为它是正则表达式或模式。

String x = "2013-04-17T08:00:00.001,41.14806,-9.58972,-13.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-22.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-31.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-40.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-49.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-58.0,0.0,0.0,-20.0,4|2013-04-17T08:00:00.001,41.14806,-9.58972,-64.0,0.0,0.0,-20.0,4"; 
String[] arr = x.split("\\|"); 
for(String s: arr){ 
    System.out.println(s); 
}

来源

2013-04-17 09:01:00

，您是否试图逃脱字符作为这样

x.split("\\|");

来源

2013-04-17 09:01:06 dinukadev

您需要添加一个\因为\本身也必须转义。 – npinti

Java字符串分割给人意想不到的结果

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