读取文件json并转换为字符串并替换java8中的字符

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public static String readJsonFileToString(String filePath) throws IOException {
    Path path = Paths.get(filePath);
    byte[] bytes = Files.readAllBytes(path);
    return new String(bytes, StandardCharsets.UTF_8);
}

String filePath = "path/to/your/json/file.json";
String jsonString = readJsonFileToString(filePath);

String replacedString = jsonString.replace("oldCharacter", "newCharacter");

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class JsonFileReader {
    public static void main(String[] args) {
        try {
            String filePath = "path/to/your/json/file.json";
            String jsonString = readJsonFileToString(filePath);

            String replacedString = jsonString.replace("oldCharacter", "newCharacter");
            System.out.println(replacedString);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static String readJsonFileToString(String filePath) throws IOException {
        Path path = Paths.get(filePath);
        byte[] bytes = Files.readAllBytes(path);
        return new String(bytes, StandardCharsets.UTF_8);
    }
}