在 spring 4 休息服务上获得 404 响应

Question

我从返回对象的@RestController 收到 404 响应。一切似乎都很好，因为我从同一个@RestController 中的另一个 url 得到了正确的响应，但它是一个不同的 class.

不过我在日志中没有看到异常或任何其他错误。只有 404.

有问题的class定义如下：

public class Menu implements Serializable {
private static final long serialVersionUID=1L;
private String url;
private List<Menu> submenu;
... getters and setters ...
}

我对类似 class 没有任何问题。唯一的区别是有一个字符串列表而不是菜单列表。

可能导致问题的原因是什么？

编辑：不想在问题中添加太多代码。这是控制器：

package org.web.ui.controller;

import java.io.IOException;
import java.security.Principal;
import java.util.ArrayList;
import java.util.Collection;

import javax.annotation.Resource;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.HttpResponse;

import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import com.fasterxml.jackson.databind.ObjectMapper;

import mx.org.ife.rfe.siirfe.comun.web.bean.LoginStatus;
import mx.org.ife.rfe.siirfe.comun.web.controller.UserLoginController;
import mx.org.ife.rfe.siirfe.comun.web.ui.model.Menu;

@RestController
@RequestMapping("/menu")
public class menuController {

private LoginStatus loginStatus ;

public menuController() {
    ArrayList<String> _roles = new ArrayList<>();
    _roles.add("TESTCASE");
    loginStatus = new LoginStatus();
    loginStatus.setRoles(_roles);

    loginStatus.setAnonymous(true);
    loginStatus.setError(false);


}

@RequestMapping(value = "/app.do")
public Menu app(HttpResponse response) {

    return new Menu();
}

@RequestMapping(value="/test1.do")
public LoginStatus test1(Principal user) {
    return loginStatus;
}


}

这是登录状态class

public class LoginStatus implements Serializable {

private static final long serialVersionUID = 1L;
private boolean anonymous = true;
private Boolean error;
private String errorMessage;
private List<String> roles;
... Getters and Setters ...
}

这是在web.xml

<servlet>
    <servlet-name>spring-dispatcher-servlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet
    </servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath*:/webApplicationContext.xml,
            classpath*:/environmentContext.xml,
            classpath*:/daoContext.xml,
            classpath*:/menuContext.xml
        </param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>spring-dispatcher-servlet</servlet-name>
    <url-pattern>*.do</url-pattern>
</servlet-mapping>

现在，对 hostname/menu/app 的获取请求执行 returns 404 错误代码，而对 hostname/menu/test1 的获取请求执行 returns 格式正确的 [=45] =]对象。

为了简单起见，我省略了菜单的初始化。

使用 wget 进行测试的示例输出：

$ wget  wlcap1:9102/siilnere-web/menu/app.do -O -
--2016-12-08 18:16:51--  http://wlcap1:9102/siilnere-web/menu/app.do
Resolving wlcap1... 172.19.94.15
Connecting to wlcap1|172.19.94.15|:9102... connected.
HTTP request sent, awaiting response... 404 Not Found
2016-12-08 18:16:51 ERROR 404: Not Found.

06:16 PM
$ wget wlcap1:9102/siilnere-web/menu/test1.do -O -
--2016-12-08 18:16:55--  http://wlcap1:9102/siilnere-web/menu/test1.do
Resolving wlcap1... 172.19.94.15
Connecting to wlcap1|172.19.94.15|:9102... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [application/json]
Saving to: 'STDOUT'
2016-12-08 18:16:55 (7.62 MB/s) - written to stdout [101]
06:16 PM
$ wget wlcap1:9102/siilnere-web/menu/test1.do -O - 2>/dev/null
{"roles":["EJEMPLO"],"token":null,"anonymous":true,"error":false,"errorMessage":null,"username":null}

Answer 1

在您的 app(...) 控制器方法中，我认为 HttpResponse 不是有效参数。它应该是 ServletResponse 或 HttpServletResponse。您可以在此处参考控制器方法的可接受参数类型列表：http://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/web/bind/annotation/RequestMapping.html

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