我正在开发一个提供 REST 接口的 Spring-MVC 后端(和 GWT 前端)。出于安全原因,它应该在每个请求上验证一个令牌。现在的问题是:我怎样才能检查那个令牌而不在每个控制器中写它应该检查它?我想到了一个类,它的方法在请求到达负责的控制器之前运行并检查令牌,如果它有效,它将把数据传递给控制器。
通过网络发送的 JSON 数据将如下所示:
{
"data":
{
"id":1,
"firstName":"firstExample",
"lastName":"lastExample"
},
"csrf":"myCSRFToken"
}
我的 Spring 设置的其余部分如下所示:
网页.xml:
<context-param>
<param-name>contextClass</param-name>
<param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
</context-param>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>myapp.server.AppConfig</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
调度程序-servlet.xml:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<context:component-scan base-package="myapp.server.controller" />
<mvc:annotation-driven />
</beans>
AppConfig.java:
@Configuration
@EnableWebMvc
public class AppConfig {
//
}
个人控制器:
@Controller
@RequestMapping("/persons")
public class PersonController {
@ResponseBody
@RequestMapping(method = RequestMethod.GET)
public Collection<Person> list() {
//
}
}
所以基本思想是,我的 CSRFCheck.java 类将首先接收每个请求。它将检查 CSRF 令牌并将 JSON 的“数据”部分的内容转发给负责的控制器。所以控制器只会收到:
{
"id":1,
"firstName":"firstExample",
"lastName":"lastExample"
}
我对 Spring 完全陌生,我想知道我必须在哪里修改我的配置才能使其按预期工作。
谢谢!
它现在在 dispatcher-servlet.xml 中使用此代码:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<context:component-scan base-package="myapp.server.controller" />
<mvc:annotation-driven />
<mvc:interceptors>
<bean class="myapp.server.XSRFInterceptor" />
</mvc:interceptors>
</beans>
但是为什么它不能与这个 AppConfig.java 一起工作?:
@Configuration
@EnableWebMvc
@ComponentScan(basePackages="myapp.server.controller")
public class AppConfig extends WebMvcConfigurerAdapter {
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new XSRFInterceptor());
}
}
还有一个问题:如何修改传递给控制器的 JSON?
问题 1 的解决方案(xml 与 java):
调度程序-servlet.xml:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
</beans>
AppConfig.java 同上
CSRFInterceptor.java:
@Component
public class CSRFInterceptor extends HandlerInterceptorAdapter {
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
// Some code
return true;
}
}
尚待解决:如何在拦截器中处理 JSON 数据?