我有以下情况:
我的 REST API 一:
@RestController
@RequestMapping("/controller1")
Public Class Controller1{
@RequestMapping(method = RequestMethod.POST)
public void process(@RequestBody String jsonString) throws InterruptedException, ExecutionException
{
............
}
}
REST API(Controller1) 的 JSON POST 请求 request1:
{
"key1":"value1",
"key2":"value2"
}
我的 REST API 两个:
@RestController
@RequestMapping("/controller2")
Public Class Controller2{
@RequestMapping(method = RequestMethod.POST)
public void process(@RequestBody String jsonString) throws InterruptedException, ExecutionException
{
............
}
}
REST API(Controller2) 的 JSON 请求 request2:
{
"key1":"value1",
"key2":"value2",
"key3":"value3"
}
我有几个这样的“原始”请求。
现在,我期待一个 JSON 请求,我们称之为 request3,它是这种“原始”查询的组合 - 如下所示:
{
{
"requestType":"requestType1",
"request":"[{"key1":"value1","key2":"value2"}]"
},
{
"requestType":"requestType2",
"request":"[{"key1":"value1","key2":"value2","key3":"value3"}]"
}
}
在这里,我需要在识别查询类型时触发相应的 API(一个或两个)。我想知道如何将请求转发到相应的 REST API。我为 request3 编写了 REST API,如下所示:
@RestController
@RequestMapping("/controller3")
Public Class Controller3{
@RequestMapping(method = RequestMethod.POST)
public void process(@RequestBody String jsonString) throws InterruptedException, ExecutionException
{
..................
..................
switch(request){
case request1: //how to call REST API 1?
case request2: //how to call REST API 2?
}
}
}
最佳答案
您可以调用一个实用方法,该方法使用 Rest 模板向 Controller 发布请求,如下所示。由于您使用的是 POST 方法,因此使用 Rest Template 发送参数很容易。您可能需要稍微编辑此代码才能在您的环境中使用准确的语法。
@RequestMapping( value= "/controller3" method = RequestMethod.POST)
public @ResponseBody void process(@RequestBody String jsonString){
String request = requestType //Get the request type from request
String url = "";
MultiValueMap<String, String> params= null;
switch(request){
case request1: //how to call REST API 1?
url = "/controller1";
params = request1param //Get the parameter map from request
case request2: //how to call REST API 2?
url = "/controller2";
params = request2Param //Get the parameter map from request
}
//Now call the method with parameters
getRESTResponse(url, params);
}
private String getRESTResponse(String url, MultiValueMap<String, String> params){
RestTemplate template = new RestTemplate();
HttpEntity<MultiValueMap<String, String>> requestEntity=
new HttpEntity<MultiValueMap<String, String>>(params);
String response = "";
try{
String responseEntity = template.exchange(url, HttpMethod.POST, requestEntity, String.class);
response = responseEntity.getBody();
}
catch(Exception e){
response = e.getMessage();
}
return response;
}
Redirect from one controller method to another controller method
或者,您也可以使用 Rest Template 调用 rest 方法
Spring MVC - Calling a rest service from inside another rest service
您可以在这篇文章中找到如何使用参数发送 POST 请求
https://techie-mixture.blogspot.com/2016/07/spring-rest-template-sending-post.html
关于json - 将 JSON POST 请求从一个 REST API 转发到另一个,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38829595/