5.spring boot使用FastJson解析JSON数据

1.引入FastJson依赖包

<dependency>
   <groupId>com.alibaba</groupId>
   <artifactId>fastjson</artifactId>
   <version>1.2.47</version>
</dependency>

2.在Application配置FastJson

package com.text.textdemo;

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.http.HttpMessageConverters;
import org.springframework.context.annotation.Bean;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;

import java.util.ArrayList;
import java.util.List;

@SpringBootApplication
public class TextDemoApplication {

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


	@Bean
	public HttpMessageConverters fastJsonHttpMessageConverters() {
		//1.须要先定义一个Convert 转换消息的对象；
		FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();

		//2.添加fastjson的配置信息，好比：是否要格式化返回就送数据；
		FastJsonConfig fastJsonConfig = new FastJsonConfig();
		fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);

		//3.在Convert中添加配置信息；
		fastConverter.setFastJsonConfig(fastJsonConfig);

		//解决中文乱码
		List<MediaType> fastMediaTypes = new ArrayList<>();
		fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
		fastConverter.setSupportedMediaTypes(fastMediaTypes);

		HttpMessageConverter<?> converter = fastConverter;
		return new HttpMessageConverters(converter);
	}
}

3.编写测试Demo实体类

package com.text.textdemo;

import com.alibaba.fastjson.annotation.JSONField;

import java.util.Date;

public class Demo {
    private int id;
    private String name;
    //建立时间    格式化时间
    @JSONField(format = "yyyy-MM-dd HH:mm")
    private Date createTime;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Date getCreateTime() {
        return createTime;
    }

    public void setCreateTime(Date createTime) {
        this.createTime = createTime;
    }
}

4.编写测试getDemo方法

@RequestMapping(value = "/getDemo" ,method = RequestMethod.GET)
    public Demo getDemo(){
        Demo demo = new Demo();
        demo.setId(1);
        demo.setName("您好，spring boot");
        demo.setCreateTime(new Date());
        return demo;
    }

5.测试

 

总结：若是不想返回实体的属性，请在属性什么加上@JSONField(serialize = false)