网上杂七杂八的说法不一，大多数都是抄来抄去，没有实践，近期在项目频繁遇到boot+jackson处理日期的问题，故开此贴。
首先是pom
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<?xml version="1.0" encoding="utf-8"?><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>io.cj.learning</groupid> <artifactid>boot2exam</artifactid> <version>0.0.1-snapshot</version> <packaging>jar</packaging> <name>boot2exam</name> <description>demo project for spring boot</description> <parent> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-parent</artifactid> <version>2.0.0.release</version> <relativepath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceencoding>utf-8</project.build.sourceencoding> <project.reporting.outputencoding>utf-8</project.reporting.outputencoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-data-redis</artifactid> </dependency> <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>org.springframework.boot</groupid> <artifactid>spring-boot-starter-web</artifactid> <version>release</version> <scope>compile</scope> </dependency> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-web</artifactid> <version>release</version> <scope>compile</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-maven-plugin</artifactid> </plugin> </plugins> </build></project> |
然后是yml文件
（当然yml这东西很多人不喜欢，我也写了个properties版本的）
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spring: jackson: #参数意义： #jsoninclude.include.always 默认 #jsoninclude.include.non_default 属性为默认值不序列化 #jsoninclude.include.non_empty 属性为 空（””） 或者为 null 都不序列化 #jsoninclude.include.non_null 属性为null 不序列化 default-property-inclusion: always time-zone: gmt+8 date-format: yyyy-mm-dd hh:mm:ss |
上面配置对应的properties文件版本：
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#jackson相关配置spring.jackson.date-format = yyyy-mm-dd hh:mm:ss#时区必须要设置spring.jackson.time-zone= gmt+8#always的意思是即时属性为null，仍然也会输出这个keyspring.jackson.default-property-inclusion=always |
然后来定义一个controller和java bean
controller：
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package io.cj.learning.boot2exam.controller;import io.cj.learning.boot2exam.model.dateformattest;import org.springframework.web.bind.annotation.*;import java.text.simpledateformat;import java.util.date;@restcontroller@requestmapping(value="/test")public class testcontroller { /** * 测试时间序列化, java.util.date 类型 -> string * @return */ @requestmapping(value="/dateformattest", method = requestmethod.get) @responsebody public dateformattest dateformattest(){ dateformattest dateformattest = new dateformattest(); dateformattest.setintproperties(100); dateformattest.setdateproperties(new date()); return dateformattest; } /** * 测试时间反序列化 string -> java.util.date 类型 */ @requestmapping(value="/dateformattest2" ,method = requestmethod.post) public void dateformattest2(@requestbody dateformattest model){ simpledateformat sdf = new simpledateformat("yyyy-mm-dd hh:mm:ss"); system.out.println(model.getintproperties()); system.out.println(sdf.format(model.getdateproperties())); system.out.println(model.getstrproperties()); }} |
java bean：
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package io.cj.learning.boot2exam.model;import java.util.date;/** * 一个model，里面带一个日期类型 */public class dateformattest { private integer intproperties; private date dateproperties; private string strproperties; public integer getintproperties() { return intproperties; } public void setintproperties(integer intproperties) { this.intproperties = intproperties; } public date getdateproperties() { return dateproperties; } public void setdateproperties(date dateproperties) { this.dateproperties = dateproperties; } public string getstrproperties() { return strproperties; } public void setstrproperties(string strproperties) { this.strproperties = strproperties; }} |
启动主类：
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package io.cj.learning.boot2exam;import org.springframework.boot.springapplication;import org.springframework.boot.autoconfigure.springbootapplication;@springbootapplicationpublic class boot2examapplication { public static void main(string[] args) { springapplication.run(boot2examapplication.class, args); }} |
测试：
试一下，首先是日期序列化， 请求一下试试
然后是反序列化，也请求一个试试：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://my.oschina.net/u/2338224/blog/2938032
