Java 在正斜杠上拆分字符串
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Split the string on forward slash
提问by saurav
I have a code which I wanted to split based on the forward slash "/".
我有一个代码，我想根据正斜杠“/”进行拆分。
Whenever I have a regex split based on "////" it never splits and gives me the whole string back. I tried replacing with file separator which gives "\" and then splitting with "\\" works but not the below code.
每当我根据“////”进行正则表达式拆分时，它永远不会拆分并将整个字符串返回给我。我尝试用给出“\”的文件分隔符替换，然后用“\\”分割，但不是下面的代码。
Below is the code tested
下面是经过测试的代码
package org.saurav.simpletests.string;
import java.io.File;
public class StringManipulator {
public static void main(String a[]){
String testString ="/UserId/XCode/deep";
//testString = testString.replace("/", File.separator);
//testString = testString.replace("/", "_");
testSplitStrings(testString);
}
/**
* Test the split string
* @param path
*/
public static void testSplitStrings(String path){
System.out.println("splitting of sprint starts \n");
String[] paths = path.split("////");
for (int i = 0; i < paths.length; i++) {
System.out.println("paths::"+i+" "+paths[i]+"\n");
}
System.out.println("splitting of sprint ends");
}
}
cheers, Saurav
干杯，索拉夫
回答by Keppil
There is no need to escape forward slashes. Your code works fine if you just do:
没有必要逃避正斜杠。如果您只是这样做，您的代码就可以正常工作：
String[] paths = path.split("/");
回答by Akky
String[] paths = path.split("\");
回答by IrvineCAGuy
Java might return a null pointer so you need to wrap this with a try catch
Java 可能会返回一个空指针，因此您需要使用 try catch 来包装它
try {
String[] temp = imageFilenameOriginal.split("/");
} catch (Exception ex){
errorMessage = ex.getMessage();
}
The compiler is much happier this way.
这样编译器会更快乐。
回答by shreshth
i wanted to check validation of input date in the format dd/mm/yyyyso need to split my string around /You can do it simply by:
我想以格式检查输入日期的验证，dd/mm/yyyy因此需要拆分我的字符串/您可以简单地通过以下方式完成：
String spl[]=str.split("/");
int date=Integer.parseInt(spl[0]);
int month=Integer.parseInt(spl[1]);
int year=Integer.parseInt(spl[2]);
