根据文本限定符正则表达式拆分字符串 java

Question

例如，我想根据文本限定符拆分字符串

"1","10411721","MikeTison","08/11/2009","21/11/2009","2800.00","002934538","051","New York","10411720-002",".\Images\b.jpg",".\RTF\b.rtf"

资格赛=" 拆分器 = ,

我想根据 Spliter , 拆分字符串，但如果 Spliter 出现在限定符 " 内，则忽略它和 return 包含 Spliter 的字符串。

我使用的正则表达式是(?:|,)(\"(?:[^\"]+|\"\")*\"|[^,]*)

但是这个正则表达式只有 returns 逗号，请从这个角度帮助我，因为我是正则表达式的新手

请注意，如果我们在字符串中有换行符，即 \r\n，那么它应该忽略换行符

"1","10411","Muis","a","21/11/2009","2800.06","0029683778","03005136851","Awan","10411720-001",".\Images\a.jpg",".\RTF\a.rtf"
"2","08/10/2009","07:32","Call","On-Net","030092343242342376543","Monk","00:00","1.500","0.000","10.000","0.200"
"2","08/10/2009","02:50","Call","Off-Net","030092343242342376543","Une","08:00","1.500","2.000","20.000","3.500"
"2","09/10/2009","03:55","SMS","On-Net","030092343242342376543","Mink","00:00","1.500","0.000","5.000","100.500"
"2","09/10/2009","12:30","Call","Off-Net","030092343242342376543","Zog","01:01","3.500","3.000","70.000","6.500"
"2","09/10/2009","09:11","Call","On-Net","030092343242342376543","Monk","02:30","2.00","2.000","90.000","4.000"

Answer 1

删除整个字符串的第一个和最后一个字符。然后用“,”分割，

String test = "\"1\",\"10411721\",\"MikeTison\",\"08/11/2009\",\"21/11/2009\",\"2800.00\",\"002934538\",\"051\",\"New York\",\"10411720-002\",\".\Images\b.jpg\",\".\RTF\b.rtf\"";

if (test.length() > 0)
  test = test.substring(1, test.length()-1);

System.out.println(Arrays.toString(test.split("\",\"")));

Answer 2

您可以使用此正则表达式拆分：

String[] arr = input.split( "(?=(([^\"]*\"){2})*[^\"]*$),+" );

如果这些正则表达式在双引号之外，则此正则表达式将以逗号分隔，方法是使用先行确保逗号后有偶数个引号。

Answer 3

即使你有换行符也能正常工作..试试看

    String str="\"1\",\"10411721\",\"MikeTison\",\"08/11/2009\",\"21/11/2009\",\"2800.00\",\"002934538\",\"051\",\"New York\",\"10411720-002\",\".\Images\b.jpg\",\".\RTF\b.rtf\"";
    System.out.println(Arrays.toString(str.split(",(?=([^\"]*\"[^\"]*\")*[^\"]*$)")));

Answer 4

可能最简单的解决方案不是搜索 split 的位置，而是 find 您想要 return 的元素。在您的情况下，这些元素

开始 "
以 " 结尾
里面没有"。

所以你试试

String data = "\"1\",\"10411721\",\"MikeTison\",\"08/11/2009\",\"21/11/2009\",\"2800.00\",\"002934538\",\"051\",\"New York\",\"10411720-002\",\".\Images\b.jpg\",\".\RTF\b.rtf\"";

Pattern p = Pattern.compile("\"([^\"]+)\"");
Matcher m = p.matcher(data);
while(m.find()){
    System.out.println(m.group(1));
}

输出：

1
10411721
MikeTison
08/11/2009
21/11/2009
2800.00
002934538
051
New York
10411720-002
.\Images\b.jpg
.\RTF\b.rtf

根据文本限定符正则表达式拆分字符串 java

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