spring aop 获取request、response对象_weixin_30591551的博客-CSDN博客

安宇雨 - 随手采集
2020-11-06 15:44:47
随手采集
0000-未整理-等待研究

在网上看到有不少人说如下方式获取：

1.在web.xml中添加监听

<listener>
<listener-class>
org.springframework.web.context.request.RequestContextListener
</listener-class>
</listener>

2.在aop类中有以下两种方式获取

@Autowired
HttpServletRequest request; //这里可以获取到request

或者

HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();

但是我试后，发现都获取不到。

既然这样那就要用其他方式获取了。

1. 新建一个存储request、response对象的类

import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; public class SysContent { private static ThreadLocal<HttpServletRequest> requestLocal = new ThreadLocal<HttpServletRequest>(); private static ThreadLocal<HttpServletResponse> responseLocal = new ThreadLocal<HttpServletResponse>(); public static HttpServletRequest getRequest() { return (HttpServletRequest) requestLocal.get();

} public static void setRequest(HttpServletRequest request) {

requestLocal.set(request);
}

   public static HttpServletResponse getResponse() {
       return (HttpServletResponse) responseLocal.get();
   }

   public static void setResponse(HttpServletResponse response) {
       responseLocal.set(response);
   } public static HttpSession getSession() { return (HttpSession) ((HttpServletRequest) requestLocal.get()).getSession();

}

2. 新建一个filter，并在web.xml中添加filter配置

import java.io.IOException; import javax.servlet.Filter; import javax.servlet.FilterChain; import javax.servlet.FilterConfig; import javax.servlet.ServletException; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class InitContent implements Filter {

@Override public void doFilter(ServletRequest arg0, ServletResponse arg1, FilterChain arg2) throws IOException, ServletException {
    SysContent.setRequest((HttpServletRequest) arg0);
    SysContent.setResponse((HttpServletResponse) arg1);
    arg2.doFilter(arg0, arg1);
}

@Override public void init(FilterConfig arg0) throws ServletException {
}
@Override public void destroy() {
}

}

web.xml

<filter>
    <filter-name>InitContent</filter-name>
    <filter-class>com.*.filter.InitContent</filter-class>
</filter>
<filter-mapping>
    <filter-name>InitContent</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

这样一来，每次请求的request、response都存在了ThreadLocal中，每次需要的时候从里面获取即可

HttpServletRequest request = SysContent.getRequest();
HttpServletResponse response = SysContent.getResponse();
HttpSession session = SysContent.getSession();

原网址: 访问
创建于: 2020-11-06 15:44:47
目录: default
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