如何使用Spring Boot将JSON映射到对象 [英] How to map json to object using spring boot

问题描述

你好，我想知道在使用Spring Boot时如何将json消息映射到java中的对象.

Hello I'd like to know how I could mapp my json message to object in java when using spring boot.

让我说我正在获取json

Let's say I'm getting json like

 {
    "customerId": 2,
    "firstName": "Jan",
    "lastName": "Nowak",
    "town": "Katowice"
  }

，我想在我的java程序中使其成为实体: 出于任何原因，我都不希望字段名匹配

and I'd like to make it entity in my java program: and for whatever reason I dont want to have match on field names

public class Customer {


    //Something like @Map("customerId")
    private long OMG;
    //Something like @Map("firstName")
    private String WTF;
    //Something like @Map("lastName")
    private String LOL;
    //Something like @Map("town")
    private String YOLO;

我找不到应该使用的注释，不是使用杰克逊，而是内置在spring boot转换器中?

I cannot find what annotation I should use, Not using jackson, just built in spring boot converter??

推荐答案

Jackson开箱即用，提供了春季启动功能.

Spring boot comes with Jackson out-of-the-box.

您可以使用@RequestBody Spring MVC批注将json字符串解编组到Java对象中...

You can use @RequestBody Spring MVC annotation to un-marshall json string to Java object... something like this.

@RestController
public class CustomerController {
    //@Autowired CustomerService customerService;

    @RequestMapping(path="/customers", method= RequestMethod.POST)
    @ResponseStatus(HttpStatus.CREATED)
    public Customer postCustomer(@RequestBody Customer customer){
        //return customerService.createCustomer(customer);
    }
}

使用@JsonProperty和相应的json字段名称注释您的实体成员元素.

Annotate your entities member elements with @JsonProperty with corresponding json field names.

public class Customer {
    @JsonProperty("customerId")
    private long OMG;
    @JsonProperty("firstName")
    private String WTF;
    @JsonProperty("lastName")
    private String LOL;
    @JsonProperty("town")
    private String YOLO;
}

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