@WebServlet(urlPatterns="/query") public class HelloServlet extends HttpServlet { protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException { Map<String, String[]> map=req.getParameterMap(); resp.setContentType("text/html"); PrintWriter pw=resp.getWriter(); Boolean flag=map.get("name")!=null&&map.get("name").length>0; pw.write("<h1>Hello,"+(flag?map.get("name")[0]:"")+"!</h1>"); pw.flush(); } }
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净净一隅
@WebServlet(urlPatterns="/query")
public class HelloServlet extends HttpServlet {
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
Map<String, String[]> map=req.getParameterMap();
resp.setContentType("text/html");
PrintWriter pw=resp.getWriter();
Boolean flag=map.get("name")!=null&&map.get("name").length>0;
pw.write("<h1>Hello,"+(flag?map.get("name")[0]:"")+"!</h1>");
pw.flush();
}
}