使用Wicket作為REST API

Question

我需要Wicket來響應AngularJS的發布請求。

我在wicket中設置了這樣的頁面，但請求參數始終為空

@MountPath(value = "/api/my/rest/url")
public class MyPostHandler extends SecureWebPage {

    public MyPostHandler () {
        final WebRequest webRequest = (WebRequest) getRequest();
        final HttpServletRequest rawRequest = (HttpServletRequest) webRequest.getContainerRequest();

        if (rawRequest.getMethod().equalsIgnoreCase("POST")) {
            webRequest.getRequestParameters().getParameterNames(); //Returns an empty list
            webRequest.getPostParameters().getParameterNames(); //Returns an empty list
        }
    }
}

發送POST請求的AngularJS代碼如下所示：

$http.post('/api/my/rest/url', {some:"data", other:"stuff"});

知道這里出了什么問題嗎？ 謝謝！

Answer 1

不知道這是否是最好的解決方案，但是以下代碼對我有用

@MountPath(value = "/api/my/rest/url")
public class MyPostHandler extends SecureWebPage {

    public MyPostHandler () {
        final WebRequest webRequest = (WebRequest) getRequest();
        final HttpServletRequest rawRequest = (HttpServletRequest) webRequest.getContainerRequest();

        if (rawRequest.getMethod().equalsIgnoreCase("POST")) {

            BufferedReader br;
            try {
                br = rawRequest.getReader();
                String jsonString = br.readLine();
                //Do something with the JSON here
            }
            catch (IOException e) {

            }

        }
    }
}

我遇到的另一個潛在解決方案是該項目https://github.com/bitstorm/Wicket-rest-annotations

Answer 2

WicketStuff REST注釋可以通過對JSON序列化/反序列化的內置支持來幫助完成此任務。

Answer 3

我在我的一個項目中使用了Wicket rest注釋 。 這是它的Maven存儲庫 。 請在下面找到一個例子：

的pom.xml

<dependency>
    <groupId>org.wicketstuff</groupId>
    <artifactId>wicketstuff-restannotations</artifactId>
    <version>8.1.0</version>
</dependency>
<dependency>
    <groupId>org.wicketstuff</groupId>
    <artifactId>wicketstuff-restannotations-json</artifactId>
    <version>8.1.0</version>
</dependency>

創建您的Wicket REST資源：

import org.wicketstuff.rest.annotations.MethodMapping;
import org.wicketstuff.rest.annotations.parameters.RequestBody;
import org.wicketstuff.rest.resource.gson.GsonRestResource;
import org.wicketstuff.rest.utils.http.HttpMethod;

public class MyPostHandler extends GsonRestResource {    
    @MethodMapping(value = "/my/rest/url", httpMethod = HttpMethod.POST)
    public boolean handlePost(@RequestBody SomeObject someObject) {
        ...
    }
}

然后在您的Wicket WebApplication init（）方法中，注冊其余資源：

    mountResource("/api", new ResourceReference("restReference") {
        MyPostHandler resource = new MyPostHandler();

        @Override
        public IResource getResource() {
            return resource;
        }
    });

REST Web服務啟動后，您可以發出HTTP POST請求：

POST URL: http://localhost:8080/api/my/rest/url
POST data: {json data for SomeObject}
Content-Type: application/json

而已。