将多个参数传递给rest API - Spring [英] Pass multiple parameters to rest API - Spring

问题描述

我试图弄清楚是否可以将JSON对象传递给其他API，或者将多个参数传递给该API？以及如何在Spring中读取这些参数？让我们假设网址如下所示：

I am trying to figure out if it is possible to pass a JSON object to rest API, Or pass a multiple parameters to that API ? And how to read these parameters in Spring ? Lets assume that the url looks like the below examples :

Ex.1 http：// localhost：8080 / api / v1 / mno / objectKey ？id = 1& name = saif

传递JSON对象是否有效，如下面的url？

Is it valid to pass a JSON object like in the url below ?

Ex.2 http：// localhost：8080 / api / v1 / mno / objectKey / {id：1，name：Saif}

问题：

1）是否可以将JSON对象传递给如Ex.2中的url？

1) Is it possible to pass a JSON object to the url like in Ex.2?

2）我们如何传递和解析Ex.1中的参数？

2) How can we pass and parse the parameters in Ex.1?

我试着写一些方法来实现我的目标，但找不到合适的解决方案？

I tried to write some methods to achieve my goal, but could not find the right solution?

I试图将JSON对象传递为@RequestParam

I tried to pass JSON object as @RequestParam

http：// localhost：8080 / api / v1 / mno / objectKey？id = 1 出现意外错误（type = Unsupported Media Type，status = 415）。内容类型'null'不受支持

http：// localhost：8080 / api / v1 / mno / objectKey / id = 1 出现意外错误（type = Not Found，status = 404）。没有可用消息

http：// localhost：8080 / api / v1 / mno / objectKey /％7B％ 22id％22：1％7D 出现意外错误（type = Not Found，status = 404）。没有可用消息

@RequestMapping(value="mno/{objectKey}",
                method = RequestMethod.GET, 
                consumes="application/json")
    public List<Book> getBook4(@RequestParam ObjectKey objectKey) {
        ...
    }

I试图将JSON对象传递为@PathVariable

I tried to pass the JSON object as @PathVariable

@RequestMapping(value="ghi/{objectKey}",method = RequestMethod.GET)
    public List<Book> getBook2(@PathVariable ObjectKey objectKey) {
        ...         
    }

I创建此对象以保存id参数和其他参数，如名称等....

I created this object to hold the id parameter and other parameters like name , etc ....

class ObjectKey{
        long id;
        public long getId() {
            return id;
        }
        public void setId(long id) {
            this.id = id;
        }
    }

推荐答案

（1）是否可以像往常一样将JSON对象传递给url？

(1) Is it possible to pass a JSON object to the url like in Ex.2?

否，因为 http：// localhost：8080 / api / v1 / mno / objectKey / {id：1，name：Saif} 无效URL。

如果您想以RESTful方式执行此操作，请使用 http：// localhost：8080 / api / v1 / mno / objectKey / 1 / Saif ，并定义了这样的方法：

If you want to do it the RESTful way, use http://localhost:8080/api/v1/mno/objectKey/1/Saif, and defined your method like this:

@RequestMapping(path = "/mno/objectKey/{id}/{name}", method = RequestMethod.GET)
public Book getBook(@PathVariable int id, @PathVariable String name) {
    // code here
}

（2）我们如何传递和解析Ex中的参数。 1？

(2) How can we pass and parse the parameters in Ex.1?

只需添加两个请求参数，并给出正确的路径。

Just add two request parameters, and give the correct path.

@RequestMapping(path = "/mno/objectKey", method = RequestMethod.GET)
public Book getBook(@RequestParam int id, @RequestParam String name) {
    // code here
}

更新 （来自评论）

如果我们有复杂的参数结构怎么办？

What if we have a complicated parameter structure ?

"A": [ {
    "B": 37181,
    "timestamp": 1160100436,
    "categories": [ {
        "categoryID": 2653,
        "timestamp": 1158555774
    }, {
        "categoryID": 4453,
        "timestamp": 1158555774
    } ]
} ]

使用请求正文中的JSON数据将其作为 POST 发送，而不是在URL中发送，并指定内容类型 application / json 。

Send that as a POST with the JSON data in the request body, not in the URL, and specify a content type of application/json.

@RequestMapping(path = "/mno/objectKey", method = RequestMethod.POST, consumes = "application/json")
public Book getBook(@RequestBody ObjectKey objectKey) {
    // code here
}

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