android java读写yaml文件

目录

申请读写权限：

build.gradle中添加库引用：

android java读写yaml文件

java修改yaml文件 YamlFile：

修改yaml文件方法2 Yaml：

删除值：

---

申请读写权限：

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

build.gradle中添加库引用：

dependencies {
    /** 日志库 **/

    implementation 'androidx.core:core-ktx:1.2.0'
    implementation 'androidx.appcompat:appcompat:1.1.0'
    // 集成日志库
    api 'com.jakewharton.timber:timber:5.0.1'

    implementation 'org.yaml:snakeyaml:1.33'
    api 'com.google.code.gson:gson:2.8.5'
    api 'com.squareup.okhttp3:okhttp:4.9.1'
    implementation 'com.alibaba:fastjson:2.0.28'
}

android java读写yaml文件

import org.simpleyaml.configuration.file.YamlFile;
import org.yaml.snakeyaml.DumperOptions;
import org.yaml.snakeyaml.Yaml;

    private static void run() {
            File file = new File("/data/data/com.xx/files/config.yaml");
            if (file.exists()) {
                YamlFile yamlFile = new YamlFile(file);
                try {
                    yamlFile.load();
                   int debug = yamlFile.getInt("debug", 1);
//                Timber.i("debug: " + debug);
                    Timber.i("debug: %s", debug);
                } catch (IOException e) {
                }
            }

        Map<String, Object> data = new HashMap<>();
        data.put("name", "John Doe");
        data.put("age", 30);

        DumperOptions options = new DumperOptions();
        options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
        Yaml yaml = new Yaml(options);

        try (FileWriter writer = new FileWriter("path_to_your_file.yaml")) {
            yaml.dump(data, writer);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

写文件可以参考下面的：java修改yaml文件 YamlFile 

java修改yaml文件 YamlFile：

    private  void modfiy_param(String key ,int value) {

        File file = new File("/data/data/com.xx/files/config.yaml");
        if (file.exists()) {
            YamlFile yamlFile = new YamlFile(file);
            try {
                yamlFile.load();
                int track_delay = yamlFile.getInt("aaa", 1);
                Timber.i("aaa: %s", aaa);
                yamlFile.set(key, value);
                yamlFile.save();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
}

修改yaml文件方法2 Yaml：

        Yaml yaml = new Yaml();
        Map<String, Object> data = null;
        try {
            data = yaml.load(new FileInputStream("/data/data/com.xx/files/config.yaml"));
            // 2. 修改这个对象
            data.put("name", "Jane Doe");
//        Map<String, Object> data = new HashMap<>();
            data.put(key, value);

            FileWriter writer = new FileWriter("/data/data/com.xx/files/config.yaml");
            yaml.dump(data, writer);
        } catch (FileNotFoundException e) {
            throw new RuntimeException(e);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }

删除值：

import org.yaml.snakeyaml.Yaml;

import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Map;

public class Main {
    public static void main(String[] args) {
        deleteFromYamlFile("path_to_your_file.yaml", "name");
    }

    public static void deleteFromYamlFile(String filePath, String key) {
        Yaml yaml = new Yaml();

        try {
            // 1. 读取文件并将其解析为一个对象
            Map<String, Object> data = yaml.load(new FileInputStream(filePath));

            // 2. 从这个对象中删除一个键
            data.remove(key);

            // 3. 将修改后的对象写回到文件
            FileWriter writer = new FileWriter(filePath);
            yaml.dump(data, writer);
            writer.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}