springboot使用fastJson做为json解析框架

springboot使用fastJson做为json解析框架

springboot默认自带json解析框架,默认使用jackson,若是使用fastjson,能够按照下列方式配置使用java

〇、搭建springbboot基础环境

1、添加依赖

<dependencies>
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>fastjson</artifactId>
        <version>1.2.15</version>
    </dependency>
</dependencies>

2、在app.class(启动类)中的配置

配置方式一(经过继承的方式)
一、启动类继承WebMvcConfigurerAdapter
二、重写configureMessageConverters方法web

@Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        super.configureMessageConverters(converters);
        /*
         * 一、须要先定义一个convert转换消息的对象
         * 二、添加fastJson的配置信息,好比:是否要格式化返回json数据
         * 三、在convert中添加配置信息
         * 四、将convert添加到converters当中
         * 
         */
        //一、须要先定义一个·convert转换消息的对象;
        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
        //二、添加fastjson的配置信息,好比 是否要格式化返回json数据
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);
        //三、在convert中添加配置信息.
        fastConverter.setFastJsonConfig(fastJsonConfig);
        //四、将convert添加到converters当中.
        converters.add(fastConverter);
    }

配置方式二(经过@Bean注入的方式)spring

@Bean
public HttpMessageConverters fastJsonHttpMessageConverters() {
    // 一、须要先定义一个 convert 转换消息的对象;
    FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();        
    //二、添加fastJson 的配置信息,好比:是否要格式化返回的json数据;
    FastJsonConfig fastJsonConfig = new FastJsonConfig();
    fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);       
    //三、在convert中添加配置信息.
    fastConverter.setFastJsonConfig(fastJsonConfig);
    HttpMessageConverter<?> converter = fastConverter;
    return new HttpMessageConverters(converter);
}

2、以第一种配置方式,测试验证一下:

准备一个Controllerjson

import java.util.Date;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import com.xujie.pojo.Demo;

@RestController // 包括了@ResponseBody和Controller
public class UserController {
    
    @GetMapping("/test")
    public Demo test() {
        Demo demo = new Demo();
        demo.setId(1);
        demo.setCreateTime(new Date());
        demo.setName("demo22");
        demo.setRemarks("这里是备注信息,不该该返回");
        return demo;
    }
}

启动类写法浏览器

import java.util.List;
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 com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;

@SpringBootApplication
public class UserApplication extends WebMvcConfigurerAdapter {
    public static void main(String[] args) {
        SpringApplication.run(UserApplication.class, args);
    }
    
    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        //一、须要先定义一个·convert转换消息的对象;
        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
        //二、添加fastjson的配置信息,好比 是否要格式化返回json数据
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);
        //三、在convert中添加配置信息.
        fastConverter.setFastJsonConfig(fastJsonConfig);
        //四、将convert添加到converters当中.
        converters.add(fastConverter);
    }
}

pojo类springboot

import java.util.Date;
import com.alibaba.fastjson.annotation.JSONField;

public class Demo {
    private int id;
    private String name;
    
    //com.alibaba.fastjson.annotation.JSONField
    @JSONField(format="yyyy-MM-dd HH:mm")
    private Date createTime;//建立时间.
    
    /*
     * serialize:是否须要序列化属性.
     */
    @JSONField(serialize=false)
    private String remarks;//备注信息.
    
    
    public String getRemarks() {
        return remarks;
    }
    public void setRemarks(String remarks) {
        this.remarks = remarks;
    }
    public Date getCreateTime() {
        return createTime;
    }
    public void setCreateTime(Date createTime) {
        this.createTime = 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;
    }
    
}

浏览器测试app

输入地址:http://localhost:8080/test框架

返回:
{ "createTime":"2018-02-23 12:06", "id":1, "name":"demo22" }ide

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