如何在Java String中用单个双引号替换两个双引号?
我正在读取CSV文件,并且有一些值,例如
field 1 field 2 field 31 test case1 expecting one, and \"two\", and three
StringBuilder
将文件读取为并转换后,toString()
我将文件内容分割为:string.split(",(?=([^\"]*\"[^\"]*\")*[^\"]*$)");
。
在迭代字符串时,我得到以下值:
1test case1
expecting one, and ""two"", and three
如何将两个双引号替换为像这样的“双”的单双
这是我的代码:-
import java.io.BufferedReader;import java.io.FileReader;
import java.io.IOException;
public class csvStringParser {
/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
String path = "E:/spc.csv";
String read = readFile(path);
System.out.println("content of the file before \" = \n" +read);
// System.out.println("content of the file after= \n" +read);
String[] tokens = read.split(",(?=([^\"]*\"[^\"]*\")*[^\"]*$)");
for(int i = 0;i<tokens.length;i++) {
String abc = tokens[i].replace("\"\"", "\"");
// if(abc.length()>2){
if(abc.startsWith("\"") && abc.endsWith("\"")){
abc = abc.substring(1, abc.length()-1);
}
// }
System.out.println("> "+abc);
}
}
public static String readFile( String file ) throws IOException {
BufferedReader reader = new BufferedReader( new FileReader (file));
String line = null;
StringBuilder stringBuilder = new StringBuilder();
String ls = System.getProperty("line.separator");
while( ( line = reader.readLine() ) != null ) {
stringBuilder.append( line );
stringBuilder.append( ls );
}
return stringBuilder.toString();
}
}
回答:
使用String#replace(CharSequence,
CharSequence)。
String input = "this string \"\"has\"\" double quotes";String output = input.replace("\"\"", "\"");
http://ideone.com/xPQqL
以上是 如何在Java String中用单个双引号替换两个双引号? 的全部内容, 来源链接: utcz.com/qa/423333.html