1.引入FastJson依賴包

<!-- FastJson --><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.15</version></dependency>

　　

pom.xml參考

<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><groupId>com.muyang</groupId><artifactId>boot1</artifactId><version>0.0.1-SNAPSHOT</version><packaging>jar</packaging><name>boot1</name><url>http://maven.apache.org</url><!-- Inherit defaults from Spring Boot --><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.9.RELEASE</version><!--<version>2.0.1.RELEASE</version>--></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><!-- 自動依賴parent里面的版本<version></version>--></dependency><!-- dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-jpa</artifactId></dependency--><!-- FastJson --><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.15</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>3.8.1</version><scope>test</scope></dependency></dependencies><build><finalName>boot1</finalName><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><configuration><source>${java.version}</source><target>${java.version}</target> </configuration></plugin></plugins></build></project>

　　

2.App.java繼承WebMvcConfigurerAdapter，然后復寫configureMessageConverters方法，加入自定義的FastJson配置

/*** 復寫configureMessageConverters*/@Overridepublic void configureMessageConverters(List<HttpMessageConverter<?>> converters) {// TODO Auto-generated method stub//super.configureMessageConverters(converters);/** 1、需要先定義一個 convert 轉換消息的對象;* 2、添加fastJson 的配置信息，比如：是否要格式化返回的json數據;* 3、在convert中添加配置信息.* 4、將convert添加到converters當中.* */// 1、需要先定義一個 convert 轉換消息的對象;FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();//2、添加fastJson 的配置信息，比如：是否要格式化返回的json數據;FastJsonConfig fastJsonConfig = new FastJsonConfig();fastJsonConfig.setSerializerFeatures( SerializerFeature.PrettyFormat);//3、在convert中添加配置信息.fastConverter.setFastJsonConfig(fastJsonConfig);//4、將convert添加到converters當中.converters.add(fastConverter);}

　　

APP.JAVA參考

package com.muyang.boot1;import java.util.List;import org.apache.log4j.Logger; 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;/*** Hello world!**/ @SpringBootApplication public class App extends WebMvcConfigurerAdapter {private static Logger logger = Logger.getLogger(App.class);/*** 復寫configureMessageConverters*/@Overridepublic void configureMessageConverters(List<HttpMessageConverter<?>> converters) {// TODO Auto-generated method stub//super.configureMessageConverters(converters);/** 1、需要先定義一個 convert 轉換消息的對象;* 2、添加fastJson 的配置信息，比如：是否要格式化返回的json數據;* 3、在convert中添加配置信息.* 4、將convert添加到converters當中.* */// 1、需要先定義一個 convert 轉換消息的對象;FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();//2、添加fastJson 的配置信息，比如：是否要格式化返回的json數據;FastJsonConfig fastJsonConfig = new FastJsonConfig();fastJsonConfig.setSerializerFeatures( SerializerFeature.PrettyFormat);//3、在convert中添加配置信息.fastConverter.setFastJsonConfig(fastJsonConfig);//4、將convert添加到converters當中.converters.add(fastConverter);}public static void main( String[] args ){//System.out.println( "Hello World!" );\SpringApplication.run(App.class, args);logger.info("--sprint-boot-");}}

　　

3.建立Demo.java類，用來創建json輸出之前的對象，并創建new Date()日期格式化屬性

JSONField(format="yyyy-MM-dd HH:mm")

private Date createTime

/*** 格式化時間*/@JSONField(format="yyyy-MM-dd HH:mm")private Date createTime; /*** 不顯示json*/@JSONField(serialize=false)private String remarks;

　　

Demo.java參考

package com.muyang.boot1;import java.util.Date;import com.alibaba.fastjson.annotation.JSONField;public class Demo {private int id;private String name;/*** 格式化時間*/@JSONField(format="yyyy-MM-dd HH:mm")private Date createTime; /*** 不顯示json*/@JSONField(serialize=false)private String remarks;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;}public String getRemarks() {return remarks;}public void setRemarks(String remarks) {this.remarks = remarks;}}

　　

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4.HelloController.java控制器

普通輸出

@RequestMapping(value="/hello")public String hello(){return "hello";}

　　

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json輸出

/** * charset解決中文亂碼 **/ @RequestMapping(value="/getDemo", produces = "application/json; charset=utf-8")public Demo getDemo(){Demo demo = new Demo();demo.setId(1);demo.setName("張三");demo.setCreateTime(new Date());demo.setRemarks("這是備注信息");return demo;}

　　

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HelloController.java參考

package com.muyang.boot1;import java.util.Date;import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.RestController;@RestController public class HelloController {@RequestMapping(value="/hello")public String hello(){return "hello";}@RequestMapping(value="/getDemo", produces = "application/json; charset=utf-8")public Demo getDemo(){Demo demo = new Demo();demo.setId(1);demo.setName("張三");demo.setCreateTime(new Date());demo.setRemarks("這是備注信息");return demo;}}

　　

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轉載于:https://www.cnblogs.com/achengmu/p/9295088.html

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