| package com.huawei.esdk.fusioncompute.demo.utils;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import org.apache.log4j.Logger;import com.google.gson.Gson;import com.huawei.esdk.fusioncompute.local.model.FCSDKResponse;import com.huawei.esdk.fusioncompute.local.model.PageList;import com.huawei.esdk.fusioncompute.local.model.net.PortGroup;public class GetPortGroupsServlet extends HttpServlet{ /** * 序列化版本标识 */ private static final long serialVersionUID = 406215323069888871L; /** * log日志对象 */ private static final Logger LOGGER = Logger .getLogger(GetPortGroupsServlet.class); /** * gson，用于转换String和json之间的转换 */ private Gson gson = new Gson(); @Override protected void doPost( HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } @Override protected void doGet( HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // 获取需要调用的方法名 String methodName = request.getParameter("method"); String resp = ""; if ("getPortGroups".equals(methodName)) { // 读取Demo所用参数 resp = getPortGroups(request); } // 输出流 PrintWriter pw = response.getWriter(); // 将结果放到浏览器中 // BUG: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')// pw.print(resp);// FIXED: // 关闭输出流 pw.close(); } /** * 读取Demo所用参数 * * @param request * HttpServletRequest对象 * @return json格式的字符串 * @see * @since eSDK Cloud V100R003C20 */ @SuppressWarnings("unchecked") public String getPortGroups(HttpServletRequest request) { // 定义返回结果 String response = null; LOGGER.info("Begin to read parameters."); // 获取Session对象 HttpSession session = request.getSession(); // 获取key为PORTGROUPSRESOURCE_RES的值 FCSDKResponse<PageList<PortGroup>> resp = (FCSDKResponse<PageList<PortGroup>>)session.getAttribute("PORTGROUPSRESOURCE_RES"); // 根据接口返回数据生成JSON字符串，以便于页面展示 response = gson.toJson(resp); LOGGER.info("Finish to read parameters, response is : " + response); return response; }} |