如何获得使用java的文本文件的两行之间的文本

Question

如何获取使用Java的文本文件的两行之间的文本？ 我尝试做这样的，但它不工作：

String input = "!!!Error deploying file order\\POST_ORDER_UpdateTaxAmountCurrInCo.sql at 22-JUL-16 08:07:Chathura aBhanakana1!!!Error deploying file order\\POST_ORDER_"; 
Pattern p = Pattern.compile("(?<=\\b!!!Error deploying file\\b).*?(?=\\b!!!Error deploying file\\b)"); 
Matcher m = p.matcher(input); 
List<String> matches = new ArrayList<String>(); 
while (m.find()) { 
    System.out.println("A " + m.group()); 
} 

Answer 1

更新答案

使用正则表达式

String pattern = "([\\s\\S]*?)(!!!Error deploying file)"; 

上面的图案的说明。

1. *？ - 零点和无限时间之间匹配单个字符
2. \ S - 匹配任何空白字符
3. \ S - 匹配任何非空白字符

实施例的代码：

String line = "!!!Error deploying file order\\POST_ORDER_UpdateTaxAmountCurrInCo.sql at 22-JUL-16 08:07:Chathura aBhanakana1!!!Error deploying file order\\POST_ORDER_UpdateTaxAmountChathura aBhanakana1AAAAA !!!Error deploying file order\\POST"; 

String pattern = "([\\s\\S]*?)(!!!Error deploying file)"; 

// Create a Pattern object 
Pattern r = Pattern.compile(pattern); 

// Now create matcher object. 
Matcher m = r.matcher(line); 
while (m.find()) { 
    String str = m.group(1); 
    if(str != null && !str.isEmpty()){ 
    System.out.println("Found value: " + str); 
    } 
} 

输出

1. 找到的值：order \ POST_ORDER_UpdateTaxAmountCurrInCo.sql at 22 -JUL-16 08：07：Chathura aBhanakana1
2. 实测值： 顺序\ POST_ORDER_UpdateTaxAmountChathura aBhanakana1AAAAA

Check output here

使用分割法

示例代码：

String line = "!!!Error deploying file order\\POST_ORDER_UpdateTaxAmountCurrInCo.sql at 22-JUL-16 08:07:Chathura aBhanakana1!!!Error deploying file order\\POST_ORDER_UpdateTaxAmountChathura aBhanakana1AAAAA !!!Error deploying file order\\POST"; 

for (String retval: line.split("!!!Error deploying file")){ 
     System.out.println(retval); 
} 

产量：

1) order\POST_ORDER_UpdateTaxAmountCurrInCo.sql at 22-JUL-16 08:07:Chathura aBhanakana1 
2) order\POST_ORDER_UpdateTaxAmountChathura aBhanakana1AAAAA 
3) order\POST 

Check output here