SpringBoot———使用FastJson解析数据

SpringBoot———使用FastJson解析数据

配置文件

spring boot默认使用的json解析框架是jackson,使用fastjson需要配置，首先引入fastjson依赖

pom.xml配置如下：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>net.zzqd</groupId>
    <artifactId>SpringBoot_Parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>SpringBoot-Child1</artifactId>
  
  <dependencies>
  	<dependency>
  		<groupId>org.springframework.boot</groupId>
  		<artifactId>spring-boot-starter-web</artifactId>
  	</dependency>
  	<dependency>
  		<groupId>org.springframework.boot</groupId>
  		<artifactId>spring-boot-starter-test</artifactId>
  		<scope>test</scope>
  	</dependency>
  	<dependency>
  		<groupId>junit</groupId>
  		<artifactId>junit</artifactId>
  		<scope>test</scope>
  	</dependency>
  	<dependency>
  		<groupId>org.springframework.boot</groupId>
  		<artifactId>spring-boot-starter-web</artifactId>
  		<exclusions>
  			<exclusion>
  				<groupId>org.springframework.boot</groupId>
  				<artifactId>spring-boot-starter-logging</artifactId>
  			</exclusion>
  		</exclusions>
  	</dependency>
  	<dependency>
  		<groupId>org.springframework.boot</groupId>
  		<artifactId>spring-boot-starter-log4j</artifactId>
  		<version>1.3.8.RELEASE</version>
  	</dependency>
  	
<!--   	加入依赖，代码做修改，可以不用重新运行 -->
  	<dependency>
  		<groupId>org.springframework</groupId>
  		<artifactId>springloaded</artifactId>
  	</dependency>
  	
  	<dependency>
  		<groupId>org.springframework.boot</groupId>
  		<artifactId>spring-boot-devtools</artifactId>
  	</dependency>
  	
  	<dependency>
  		<groupId>com.alibaba</groupId>
  		<artifactId>fastjson</artifactId>
  		<version>1.2.15</version>
  	</dependency>
  </dependencies>
</project>

配置

配置有两种方式，一种是继承WebMvcConfigurerAdapter重写方法，另一种是@Bean注入第三方的json解析框架。

继承WebMvcConfigurerAdapter

package net.zzqd.app;

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;

//@EnableAutoConfiguration
//@ComponentScan("net.zzqd.controller")
//默认情况下扫描的是当前包以及当前包的子包
@SpringBootApplication(scanBasePackages="net.zzqd.controller")//组合注解
public class SpringApplications extends WebMvcConfigurerAdapter{
	
	
	
	@Override
	public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
		//1创建FastJson的消息转换器
		FastJsonHttpMessageConverter convert = new FastJsonHttpMessageConverter();
		//创建FastJson的配置对象
		FastJsonConfig config = new FastJsonConfig();
		config.setSerializerFeatures(SerializerFeature.PrettyFormat);
		convert.setFastJsonConfig(config);
		converters.add(convert);
	}

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

使用Bean注入

package net.zzqd.app;

import java.util.List;

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;
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;

//@EnableAutoConfiguration
//@ComponentScan("net.zzqd.controller")
//默认情况下扫描的是当前包以及当前包的子包
@SpringBootApplication(scanBasePackages="net.zzqd.controller")//组合注解
public class SpringApplications {
	
	
	

	@Bean
	public HttpMessageConverters fastJsonMessageConverter()
	{
		//1创建FastJson的消息转换器
		FastJsonHttpMessageConverter convert = new FastJsonHttpMessageConverter();
		//创建FastJson的配置对象
		FastJsonConfig config = new FastJsonConfig();
		config.setSerializerFeatures(SerializerFeature.PrettyFormat);
		convert.setFastJsonConfig(config);
		HttpMessageConverter<?> con = convert;
		return new HttpMessageConverters(con);
	}
	public static void main(String[] args)
	{
		SpringApplication.run(SpringApplications.class, args);
	}
}

测试类controller

package net.zzqd.controller;

import java.util.Date;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import net.zzqd.pojo.Person;

@Controller
public class TestController {
	
	@RequestMapping("/person")
	@ResponseBody
	public Object show()
	{
		Person ren = new Person();
		ren.setId(1);
		ren.setName("朱朱");
		ren.setDate(new Date());
		return ren;
	}
}

实体类

package net.zzqd.pojo;

import java.util.Date;

import com.alibaba.fastjson.annotation.JSONField;

public class Person {
	private int id;
	private String name;
	@JSONField(format="yyyy-MM-dd HH")
	private Date date;
	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 getDate() {
		return date;
	}
	public void setDate(Date date) {
		this.date = date;
	}
	
}

配置文件

SpringBoot默认编码UTF-8，为防止响应出现乱码，在application.properties中添加

spring.http.encoding.force=true

运行访问

{ "date":"2019-07-12 15", "id":1, "name":"朱朱" }