bufferedreader 转成string

import java.io.BufferedReader;
import java.io.StringReader;

public class BufferedReaderToString {
    public static void main(String[] args) {
        // 假设我们有一个 BufferedReader 对象
        BufferedReader reader = new BufferedReader(new StringReader("Hello\nWorld\n"));

        StringBuilder stringBuilder = new StringBuilder();
        String line;
        try {
            while ((line = reader.readLine()) != null) {
                stringBuilder.append(line);
                stringBuilder.append(System.lineSeparator()); // 添加换行符
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                reader.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

        String result = stringBuilder.toString();
        System.out.println(result);
    }
}