Springboot (2)---Quickly create a project, the first to solve Jackson

Tag: obj does not have the boot framework to create the private tool Bubuko date ()

Quickly create a project, first solution Jackson

first, quickly create a project

Springboot website provides tool class to automatically create Web apps: url: http://start.spring.io/

Official website surface

1. Quickly create a

Select Web representative This is a Web project

This allows the project to be put into eclipse or idea to run.

Here are a few things to note:

1.SPRINGBOOT2X, the need Mevan is 3.0+,jdk is 1.8+

2. When doing project development, the main entrance application class (annotated @springbootapplication) is placed on top of all packages.

Second, the first solution to Jackson

Jackson is Springboot's own JSON frame.

Jackson Common Tags
(1) The specified field does not return:@JsonIgnore

(2) Specify date format:@JsonFormat (pattern= "Yyyy-mm-dd hh:mm:ss", locale= "zh", timezone= "gmt+8")

(3) Empty field does not return:@JsonInclude (include.non_null)

(4) Specify alias:@JsonProperty

Example:

User Object

 Public classUser { @JsonProperty("Account")    Private intAge ; @JsonIgnore PrivateString pwd; @JsonInclude (include.non_null) PrivateString Phone; @JsonFormat (Pattern = "Yyyy-mm-dd hh:mm:ss", locale= "zh", timezone= "gmt+8")PrivateDate createtime;//provides the set and get methods, the ToString method}

Mapping method in Controller class

@GetMapping ("/testjackson")      Public Object Testjson () {        returnnewnullnew  Date ());    }

the effect Demo Interface test tool is Postman

We found that:

1: DateTime format becomes the specified format

The 2:age property appears in the interface: Account

3:PWD does not show

4: Because the phone property is null, it is not displayed.

GitHub Address: Https://github.com/yudiandemingzi/springbootjackson

Think too much, do too little, the middle of the gap is trouble. Want to have no trouble, either don't think, or do more. Captain "4"

Springboot (2)---Quickly create a project, the first to solve Jackson