Java liferay spring portal@ResourceMapping可以'；t触发不同类型的http方法

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rest调用，这些调用是我使用

@ResourceMapping

创建的，如下所示。应用程序工作正常，但问题是我不知道如何进行

GET

，

DELETE

，

PUT

http

REST

调用，因为

@ResourceMapping

不允许指定任何方法

@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

时，如下图所示

@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);
}

谁能告诉我一些解决方法吗

如何使用

@ResourceMapping

对于

REST

调用，我们是否可以在Liferay Spring portlet中使用

@RequestMapping

而不是

@ResourceMapping

我们如何创建基于资源的

REST

url，比如

getUser/12/mumbai

如何将

REST

json作为主体而不是请求参数发送

如果您想要创建一个包含完整操作（GET、POST、PUT、DELETE）的RESTAPI，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
    }

3。我们如何创建基于资源的REST URL，如getUser/12/1
@RequestMapping（value=“getUser/{userId}/mumbai”，method=RequestMethod.GET）
@应答器
公共列表userDetail（@RequestParam（“userId”）long userId）引发异常{
System.out.println（“获取id为{}+userId的用户的详细请求）；
//UserDetail UserDetail=this.userService.getPortalUserDetail（userId）；
列表用户=新建ArrayList（）；
用户。添加（“手动”）；
用户。添加（“Lissie”）；
用户。添加（“John”）；
返回用户；
}
4.如何将RESTJSON作为主体而不是请求参数发送
您可以使用@RequestBody
@RequestMapping（value=“saveUser/{userId}”，method=RequestMethod.GET）
@ResponseStatus（HttpStatus.CREATED）
public void userDetail（@RequestParam（“userId”）long userId，@RequestBody User）引发异常{
//逻辑
}

如何使用@ResourceMapping创建不同类型的http调用 以下是一些可能对您有所帮助的示例，这就是我如何使用

@RequestMapping

：

// GET
@RequestMapping(value = "/api/something", method = RequestMethod.GET)
@ResponseBody
public boolean getSomething() {
    return "something";
}

// GET with param
@RequestMapping(value = "/api/something/{id}", method = RequestMethod.GET)
@ResponseBody
public boolean getSomething(@PathVariable("id") Long id) {
    return id;
}

您可以使用

RequestMethod.GET

而不是

RequestMethod.POST

，

RequestMethod.PUT

，

RequestMethod.DELETE

等等

如何将RESTJSON作为主体而不是请求参数发送 下面是一段代码片段，我目前使用AngularJS前端进行用户注册。它工作正常，我使用@RequestMapping：

@ResponseBody
    @RequestMapping(value = "/auth/register", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<User> register(@RequestBody User user) {
        user = userService.initUser(user);
        Authentication authentication = securityUserDetailsService.register(user);
        if (authentication != null) {
            SecurityContext context = SecurityContextHolder.getContext();
            context.setAuthentication(authentication);
            User authUser = securityUserDetailsService.getAuthenticatedUser();
            return new ResponseEntity<>(authUser, HttpStatus.OK);
        } else {
            return new ResponseEntity<>(HttpStatus.INTERNAL_SERVER_ERROR);
        }
    }

为了使您能够：

另外，既然你用的是Spring，我想你应该看看和。通过这种方式，您可以将业务模型公开为RESTful端点

我们如何创建基于资源的REST URL，如getUser/12/1 因此，为了公开这个端点

getUser/12/mumbai

，您应该这样做：

// mumbai hardcoded
@RequestMapping(value = "/getUser/{id}/mumbai", method = RequestMethod.GET)
@ResponseBody
public User getUser(@PathVariable("id") Long id) {
    // go get the user ...
    return user;
}

// mumbai as a param
@RequestMapping(value = "/getUser/{id}/{prop}", method = RequestMethod.GET)
@ResponseBody
public User getUser(@PathVariable("id") Long id, @PathVariable("prop") String prop) {
    // go get the user ...
    return user;
}

---

最后，你能试着换一下吗

public void userDetail (...

对此

public ResponseEntity<userDetail > (...

公共响应（。。。

模式映射冲突异常

问题没有显示它，但您的控制器可能有

@RequestMapping（“视图”）

注释。此类型级别的映射与方法级别的映射冲突。您应该删除控制器类上的

@RequestMapping

注释

请求映射示例

@Controller
public class SampleRESTFullController {

// Simple GET
@RequestMapping(value = "/helloSample", method = RequestMethod.GET)
@ResponseStatus(HttpStatus.OK)
public @ResponseBody List<HelloSample> helloSample() { ... }

// GET with path variable
@RequestMapping(value = "/helloSample/sampleId/{sampleId}", method = RequestMethod.GET)
public @ResponseBody HelloSample helloSample(@PathVariable("sampleId") Long sampleId) { ... }

// POST with @RequestBody
@RequestMapping(value = "/helloSample", method = RequestMethod.POST)
@ResponseStatus(HttpStatus.CREATED)
public @ResponseBody HelloSample createSample(@RequestBody HelloSample helloSample) { ... }

// PUT with path variable and @RequestBody
@RequestMapping(value = "/helloSample/sampleId/{sampleId}", method = RequestMethod.PUT)
@ResponseStatus(HttpStatus.NO_CONTENT)
void update(@PathVariable("sampleId") long sampleId, @RequestBody HelloSample helloSample) { ... }

// DELETE
@RequestMapping(value = "/helloSample/sampleId/{sampleId}", method = RequestMethod.DELETE)
@ResponseStatus(HttpStatus.NO_CONTENT)
void delete(@PathVariable("sampleId") long sampleId) { ... }

}

@控制器
公共类采样器控制器{
//简单获得
@RequestMapping（value=“/helloSample”，method=RequestMethod.GET）
@ResponseStatus（HttpStatus.OK）
public@ResponseBody List helloSample（）{…}
//获取路径变量
@RequestMapping（value=“/helloSample/sampleId/{sampleId}”，method=RequestMethod.GET）
public@ResponseBody HelloSample HelloSample（@PathVariable（“sampleId”）Long sampleId）{…}
//使用@RequestBody发布
@RequestMapping（value=“/helloSample”，method=RequestMethod.POST）
@ResponseStatus（HttpStatus.CREATED）
public@ResponseBody HelloSample createSample（@RequestBody HelloSample HelloSample）{…}
//使用路径变量和@RequestBody放置
@RequestMapping（value=“/helloSample/sampleId/{sampleId}”，method=RequestMethod.PUT）
@ResponseStatus（HttpStatus.无内容）
无效更新（@PathVariable（“sampleId”）长sampleId，@RequestBody HelloSample HelloSample）{…}
//删除
@RequestMapping（value=“/helloSample/sampleId/{sampleId}”，method=RequestMethod.DELETE）
@ResponseStatus（HttpStatus.无内容）
void delete（@PathVariable（“sampleId”）long sampleId）{…}
}

我从博客文章中选取了这些示例。它回答了您所有的问题，并提供了大量示例。请注意Spring配置，它使RESTful服务成为可能（尤其是视图解析器和消息转换器）

有以下方法可以将rest应用程序与angular js一起使用

并使用以下javascript与spring控制器通信

var formData={
“用户名”：“Vasim”，
“密码”：“123456”，
“roleName”：“管理员”
};
var响应=$http.post（'add'，formData）；
response.success（函数（数据、状态、标题、配置）{
$scope.message=数据；
});
var formData={
“用户名”：“Vasim”，
“密码”：“123456”，
“roleName”：“管理员”
};
var响应=$http.put（'edit'，formData）；
response.success（函数（数据、状态、标题、配置）{
$scope.message=数据；
});
$scope.delete=函数（employeeId）{
$http['delete']（'delete'{
参数：{
“employeeId”：employeeId
}
}).
成功（功能（数据）{
$scope.msg=数据；
});
$http.get（'get'，{params:{
“id”：id
}
}).成功（功能（数据）{
$scope.employees=data；

当我尝试时with@RequestMapping我得到了org.springframework.beans.fac

// mumbai hardcoded
@RequestMapping(value = "/getUser/{id}/mumbai", method = RequestMethod.GET)
@ResponseBody
public User getUser(@PathVariable("id") Long id) {
    // go get the user ...
    return user;
}

// mumbai as a param
@RequestMapping(value = "/getUser/{id}/{prop}", method = RequestMethod.GET)
@ResponseBody
public User getUser(@PathVariable("id") Long id, @PathVariable("prop") String prop) {
    // go get the user ...
    return user;
}

public void userDetail (...

public ResponseEntity<userDetail > (...

@Controller
public class SampleRESTFullController {

// Simple GET
@RequestMapping(value = "/helloSample", method = RequestMethod.GET)
@ResponseStatus(HttpStatus.OK)
public @ResponseBody List<HelloSample> helloSample() { ... }

// GET with path variable
@RequestMapping(value = "/helloSample/sampleId/{sampleId}", method = RequestMethod.GET)
public @ResponseBody HelloSample helloSample(@PathVariable("sampleId") Long sampleId) { ... }

// POST with @RequestBody
@RequestMapping(value = "/helloSample", method = RequestMethod.POST)
@ResponseStatus(HttpStatus.CREATED)
public @ResponseBody HelloSample createSample(@RequestBody HelloSample helloSample) { ... }

// PUT with path variable and @RequestBody
@RequestMapping(value = "/helloSample/sampleId/{sampleId}", method = RequestMethod.PUT)
@ResponseStatus(HttpStatus.NO_CONTENT)
void update(@PathVariable("sampleId") long sampleId, @RequestBody HelloSample helloSample) { ... }

// DELETE
@RequestMapping(value = "/helloSample/sampleId/{sampleId}", method = RequestMethod.DELETE)
@ResponseStatus(HttpStatus.NO_CONTENT)
void delete(@PathVariable("sampleId") long sampleId) { ... }

}

@RequestMapping(value = "/saveuser", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
@RequestMapping(value = "/getemployee", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
@RequestMapping(value = "/editCountry", method = RequestMethod.PUT)
@RequestMapping(value = "/deleteCountry", method = RequestMethod.DELETE)