liferay spring portal @ResourceMapping无法触发不同类型的http方法

Question

我使用Spring,thymeleaf和AngularJS创建了一个liferay portlet应用程序.对于AngularJS和spring 之间的通信,我需要创建一些我使用的休息调用,@ResourceMapping如下所示.该应用程序工作正常,但问题是,我不知道怎么做GET,DELETE,PUTHTTP REST调用,因为@ResourceMapping没有允许指定任何方法.

@ResourceMapping(value="getUserDetail")
public void userDetail(@RequestParam long userId, ResourceResponse response) throws Exception {
    Users users = new Users(userId);
    // some logic 

    response.setContentType("application/json");
    response.setCharacterEncoding("UTF-8");

    JSON_MAPPER.writeValue(response.getPortletOutputStream(), users);
}

当我使用@RequestMapping而不是@ResourceMapping像下面所示的那样

@RequestMapping(value="getUserDetail", method=RequestMethod.GET)
@ResponseBody
public void userDetail(@RequestParam long userId, ResourceResponse response) throws Exception {
    System.out.println("Got detail request for user with id {} "+ userId);

    // UserDetail userDetail = this.userService.getPortalUserDetail(userId);
    List<String> users = new ArrayList<String>();
    users.add("Manu");
    users.add("Lissie");
    users.add("John");
    response.setContentType("application/json");
    response.setCharacterEncoding("UTF-8");

    JSON_MAPPER.writeValue(response.getPortletOutputStream(), users);
}

我有

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.portlet.mvc.annotation.DefaultAnnotationHandlerMapping': Initialization of bean failed; nested exception is java.lang.IllegalStateException: Mode mappings conflict between method and type level: [getUserDetail] versus [view]

任何人都可以告诉我一些解决方案

1. 如何使用创建不同类型的http调用 @ResourceMapping
2. 我们可以使用@RequestMapping而不是@ResourceMapping在Liferay Spring portlet中进行REST调用
3. 我们如何创建基于资源的REST网址getUser/12/mumbai
4. 我们如何发送RESTjson作为正文而不是Request Param

Answer 1

1. How to create different types of http calls using @ResourceMapping

如果您想要具有完整操作（GET、POST、PUT、DELETE）的 REST Api，您需要使用@RequestMapping.

2. Can we use @RequestMapping instead of @ResourceMapping in Liferay Spring portlet for REST calls

你应该能够使用。

3. How can we create resource based REST urls like getUser/12/mumbai

@RequestMapping(value="getUser/{userId}/mumbai", method=RequestMethod.GET)
@ResponseBody
public List<String> userDetail(@RequestParam("userId") long userId) throws Exception {
    System.out.println("Got detail request for user with id {} "+ userId);

    //UserDetail userDetail = this.userService.getPortalUserDetail(userId);
    List<String> users = new ArrayList<String>();
    users.add("Manu");
    users.add("Lissie");
    users.add("John");

    return users;
}

4. How can we send REST json as body instead of Request Param

    You can use @RequestBody

    @RequestMapping(value="saveUser/{userId}", method=RequestMethod.GET)
    @ResponseStatus(HttpStatus.CREATED)
    public void userDetail(@RequestParam("userId") long userId, @RequestBody User user) throws Exception {
        // Logic
    }