Spring Boot - 1. 支持 ali 的 fastjson

Spring Boot 完美支持阿里里巴巴 FastJSON:

  • 第一种实现方式
    1. Application 继承 WebMvcConfigurerAdapter;
    2. 重写 configureMessageConverters 方法;
    3. 完整代码示例:
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

import java.util.List;

@SpringBootApplication
public class DemoApplication extends WebMvcConfigurerAdapter {

    @Override
    public void configureMessageConverters(List> converters) {
        super.configureMessageConverters(converters);

        // 1. 定义一个 converter 转换消息的对象;
        FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter();

        // 2. 添加 FastJSON 的配置信息,比如是否要格式化返回的 JSON 数据;
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);

        // 3. 在 converter 中添加配置配置信息;
        fastJsonHttpMessageConverter.setFastJsonConfig(fastJsonConfig);

        // 4. 将 converter 添加到 converters 当中;
        converters.add(fastJsonHttpMessageConverter);
    }

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}

  • 第二种实现方式
    1. 直接使用 @Bean 注入第三方 JSON 解析框架:
    2. 完整代码:
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.web.HttpMessageConverters;
import org.springframework.context.annotation.Bean;
import org.springframework.http.converter.HttpMessageConverter;

@SpringBootApplication
public class DemoApplication {

    @Bean
    public HttpMessageConverters fastJsonHttpMessageConverters() {
        // 1. 定义一个 converter 转换消息的对象;
        FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter();

        // 2. 添加 FastJSON 的配置信息,比如是否要格式化返回的 JSON 数据;
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);

        // 3. 在 converter 中添加配置配置信息;
        fastJsonHttpMessageConverter.setFastJsonConfig(fastJsonConfig);

        HttpMessageConverter converter = fastJsonHttpMessageConverter;
        return new HttpMessageConverters(converter);
    }

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}


  1. @com.alibaba.fastjson.annotation.JSONField 注解
// 格式化返回的数据
@JSONField(format = "yy/MM/dd HH:mm")
private Date createDate;

// 是否序列化,默认为 true,则可以返回到前端
@JSONField(serialize = false)
private String remarks;

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