java fastJson转JSON两种常见的转义操作

import com.alibaba.fastjson.JSON;
public class FastJsonEscapeDemo {
    public static void main(String[] args) {
        String jsonString = "{\"name\":\"Alice\",\"message\":\"Hello, \"world\"!\"}";
        String escapedJsonString = JSON.toJSONString(jsonString);
        System.out.println(escapedJsonString);
    }
}

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializeFilter;
public class CustomEscapeFilter implements SerializeFilter {
    @Override
    public Object process(Object object, String name, Object value) {
        if (value instanceof String) {
            String strValue = (String) value;
            // 自定义转义规则，将"world"替换为"universe"
            if ("world".equals(strValue)) {
                return "universe";
            }
        }
        return value;
    }
    public static void main(String[] args) {
        String jsonString = "{\"message\":\"Hello, world!\"}";
        String escapedJsonString = JSON.toJSONString(jsonString, new CustomEscapeFilter());
        System.out.println(escapedJsonString);
    }
}

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializeFilter;
// 日志数据结构类
class LogData {
    private String username;
    private String message;
    private String specialMessage;
    public LogData(String username, String message, String specialMessage) {
        this.username = username;
        this.message = message;
        this.specialMessage = specialMessage;
    }
    // Getter and Setter methods
}
// 自定义转义过滤器
class CustomEscapeFilter implements SerializeFilter {
    @Override
    public Object process(Object object, String name, Object value) {
        if (value instanceof String) {
            String strValue = (String) value;
            // 自定义转义规则，将"world"替换为"universe"
            if ("world".equals(strValue)) {
                return "universe";
            }
        }
        return value;
    }
}
public class JsonEscapeExample {
    public static void main(String[] args) {
        // 创建日志数据对象
        LogData log = new LogData("Alice", "Hello, \"world\"!", "Hello, world!");
        // 使用FastJson将日志数据对象序列化为JSON字符串
        String jsonString = JSON.toJSONString(log);
        // 输出序列化后的JSON字符串
        System.out.println("序列化后的JSON字符串:");
        System.out.println(jsonString);
        // 使用自定义转义规则过滤器
        String escapedJsonString = JSON.toJSONString(log, new CustomEscapeFilter());
        // 输出应用自定义转义规则后的JSON字符串
        System.out.println("\n应用自定义转义规则后的JSON字符串:");
        System.out.println(escapedJsonString);
    }
}