package com.ruoyi.framework.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import org.apache.ibatis.executor.loader.javassist.JavassistProxyFactory;
import org.apache.ibatis.executor.loader.cglib.CglibProxyFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;

import java.math.BigInteger;

/**
 * Jackson配置类
 * 解决MyBatis延迟加载代理对象序列化问题
 */
@Configuration
public class JacksonConfig {

    @Bean
    public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) {
        ObjectMapper objectMapper = builder.createXmlMapper(false).build();
        
        // 注册自定义模块
        SimpleModule module = new SimpleModule();
        module.addSerializer(BigInteger.class, ToStringSerializer.instance);
        module.addSerializer(Long.class, ToStringSerializer.instance);
        objectMapper.registerModule(module);
        
        // 禁用FAIL_ON_EMPTY_BEANS特性，避免代理对象序列化错误
        objectMapper.disable(com.fasterxml.jackson.databind.SerializationFeature.FAIL_ON_EMPTY_BEANS);
        
        return objectMapper;
    }
}