请问一下查询页面出现这问题是怎么回事？
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 | package com.imooc.food;public class Food { private String id; private String foodName; private String taste; private String path; private String price; private String describe; public Food() { } public Food(String id, String foodName, String taste, String path, String price, String describe) { super(); this.id = id; this.foodName = foodName; this.taste = taste; this.path = path; this.price = price; this.describe = describe; } public String getId() { return id; } public void setId(String id) { this.id = id; } public String getFoodName() { return foodName; } public void setFoodName(String foodName) { this.foodName = foodName; } public String getTaste() { return taste; } public void setTaste(String taste) { this.taste = taste; } public String getPath() { return path; } public void setPath(String path) { this.path = path; } public String getPrice() { return price; } public void setPrice(String price) { this.price = price; } public String getDescribe() { return describe; } public void setDescribe(String describe) { this.describe = describe; } @Override public String toString() { return "Food [id=" + id + ", foodName=" + foodName + ", taste=" + taste + ", path=" + path + ", price=" + price + ", describe=" + describe + ", toString()=" + super.toString() + "]"; } }package com.imooc.food;import java.util.ArrayList;import java.util.Iterator;import java.util.List;public class FoodDaoImpl { private static final List<Food> db=new ArrayList<Food>(); private String msgString; public static List<Food> getDb(){ return db; } public String getMsgString() { return msgString; } public void setMsgString(String msgString) { this.msgString = msgString; } //添加菜品 public void addFood(Food food) { db.add(food); } //查询所有菜品信息 public List<Food> getAllFood(){ if(db.isEmpty()) { System.out.println("菜单是空的"); return null; }else { Iterator it=db.iterator(); return db; } } //根据菜品名称查询菜品信息 public Food getFoodByName(String foodName) { Food food=new Food(); for(int i=0;i<db.size();i++) { if(db.get(i).getFoodName().equals(foodName)) { food=db.get(i); break; } } return food; } //根据菜品id查询菜品信息 public Food getFoodById(String id) { Food food=new Food(); for(int i=0;i<db.size();i++) { if(db.get(i).getId().equals(id)) { food=db.get(i); break; } } return food; } //菜品修改 public void updateFood(Food newFood) { for(int i=0;i<db.size();i++) { if(db.get(i).getId().equals(newFood.getId())) { db.remove(i); db.add(i, newFood); System.out.println("菜品已更新完成！"); break; } } } //根据菜品ID进行删除 public void deleteFoodById(String id) { if(db.isEmpty()) { System.out.println("菜品是空的"); return; }else { for(int i=0;i<db.size();i++) { if(db.get(i).getId().equals(id)) { db.remove(i); break; } } } }} |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 | package com.imooc.servlet;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.HashMap;import java.util.List;import java.util.Map;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.commons.fileupload.FileItem;import org.apache.commons.fileupload.FileUploadException;import org.apache.commons.fileupload.disk.DiskFileItemFactory;import org.apache.commons.fileupload.servlet.ServletFileUpload;import com.imooc.food.Food;import com.imooc.food.FoodDaoImpl;import com.imooc.utils.UploadUtils;/** * Servlet implementation class FoodAddServlet */@WebServlet("/FoodAddServlet")public class FoodAddServlet extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public FoodAddServlet() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { FoodDaoImpl FoodDaoImpl1=(FoodDaoImpl) this.getServletContext().getAttribute("FoodDaoImpl"); List<Food> foodList=(List<Food>) this.getServletContext().getAttribute("foodList"); if(foodList.isEmpty()) { System.out.println("从servletContext中获得的集合是空的"); } try { //定义一个Map集合用于保存接收到的数据(即addFood.jsp提交的) Map<String, String> map = new HashMap<String, String>(); //1、创建一个磁盘文件项工厂对象 DiskFileItemFactory diskFileItemFactory = new DiskFileItemFactory(); //2、创建一个核心的解析类 ServletFileUpload servletFileUpload = new ServletFileUpload(diskFileItemFactory); //3、解析request请求，返回的是List集合，List集合中存放的是FileItem对象 List<FileItem> list = servletFileUpload.parseRequest(request); //4、遍历list,查看传递过来的数据是什么 String url = null; for(FileItem fileItem:list) { if(fileItem.isFormField()) { //普通表单项：单选框、多选框、按钮 //接收表单项参数的值 String name = fileItem.getFieldName();//获得表单项的name属性的值 String value = fileItem.getString("UTF-8"); //存放在map中 map.put(name, value); }else { //文件上传项 //获得文件上传的名称 String fileName=fileItem.getName(); if(fileName!=null && !"".equals(fileName)) { //通过工具类获得唯一文件名 String uuidFileName=UploadUtils.getUUIDFileName(fileName); //获得文件上传的数据 InputStream is=fileItem.getInputStream(); //获得文件上传的路径 String path=this.getServletContext().getRealPath("/foodImage"); //将输入流对接到输出流 url=path+"\\"+uuidFileName; OutputStream os=new FileOutputStream(url); int len=0; byte[] b=new byte[1024]; while((len=is.read(b))!=-1) { os.write(b, 0, len); } is.close(); os.close(); } } } if(foodList==null) System.out.println("从ContextServlet中获得的菜单是空的"); if(foodList!=null) { //检验网页上添加的菜名是否已存在 for(Food food:foodList) { if(food.getId().equals(map.get("id"))) { request.setAttribute("msg", "菜名已存在"); //菜名已存在，跳转到添加界面 request.getRequestDispatcher("/addFood.jsp").forward(request, response); return; } } } //新添加的菜名可上传，封装相关数据 Food food = new Food(); food.setId(map.get("id")); food.setFoodName(map.get("foodName")); food.setTaste(map.get("taste")); food.setPath(url); food.setPrice((map.get("price"))); food.setDescribe(map.get("description")); if( FoodDaoImpl1==null) { FoodDaoImpl1=new FoodDaoImpl(); } //添加到全局对象FoodDaoImpl1中 FoodDaoImpl1.addFood(food); this.getServletContext().setAttribute("FoodDaoImpl1", FoodDaoImpl1); //跳转到展示食物界面 request.getRequestDispatcher("/showFoodList.jsp").forward(request, response); //response.sendRedirect(request.getContextPath()+"/showFoodList.jsp"); } catch (FileUploadException e) { // TODO Auto-generated catch block e.printStackTrace(); } }}package com.imooc.servlet;import java.io.IOException;import java.util.List;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import com.imooc.food.Food;import com.imooc.food.FoodDaoImpl;/** * Servlet implementation class FoodDeleteServlet */@WebServlet("/FoodDeleteServlet")public class FoodDeleteServlet extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public FoodDeleteServlet() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { FoodDaoImpl FoodDaoImpl1=(FoodDaoImpl)this.getServletContext().getAttribute("FoodDaoImpl1"); List<Food> foodList=FoodDaoImpl1.getDb(); String deleteFoodId = request.getParameter("id"); String msg=FoodDaoImpl1.getMsgString(); boolean flag=false; for(Food food:foodList) { if(food.getId().equals(deleteFoodId)) flag=true; } if(flag==false) { msg="输入的id无效，请重新输入"; request.setAttribute("msg",msg); } if(flag==true) { FoodDaoImpl1.deleteFoodById(deleteFoodId); this.getServletContext().setAttribute("FoodDaoImpl1", FoodDaoImpl1); msg="根据id删除菜品已完成"; request.setAttribute("msg",msg); request.getRequestDispatcher("/showFoodList.jsp").forward(request, response); } }}package com.imooc.servlet;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.commons.fileupload.FileItem;import org.apache.commons.fileupload.FileUploadException;import org.apache.commons.fileupload.disk.DiskFileItemFactory;import org.apache.commons.fileupload.servlet.ServletFileUpload;import com.imooc.food.Food;import com.imooc.food.FoodDaoImpl;import com.imooc.utils.UploadUtils;/** * Servlet implementation class FoodUpdateServlet */@WebServlet("/FoodUpdateServlet")public class FoodUpdateServlet extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public FoodUpdateServlet() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("UTF-8"); FoodDaoImpl FoodDaoImpl1=(FoodDaoImpl) this.getServletContext().getAttribute("FoodDaoImpl1"); List<Food> foodList=FoodDaoImpl1.getDb(); if(foodList.isEmpty()) { System.out.println("从ServletContext中获取的list是空的"); } Map<String, String> map = new HashMap<String, String>(); try { //1.创建磁盘工厂项文件 DiskFileItemFactory diskFileItemFactory=new DiskFileItemFactory(); //2.创建一个核心解析类 ServletFileUpload servletFileUpload=new ServletFileUpload(diskFileItemFactory); //3.解析requst请求，返回的是List集合，List集合中存放的是FileItem对象 List<FileItem> list = servletFileUpload.parseRequest(request); //4.遍历List集合，判断FileItem类型 String url = null; for(FileItem fileItem:list) { if(fileItem.isFormField()) { String name=fileItem.getName(); String value=fileItem.getString("UTF-8"); map.put(name,value); }else { String fileName = fileItem.getName(); if(fileName!=null&&!"".equals(fileName)) { //通过工具类获取获取唯一文件名 String uuidFileName=UploadUtils.getUUIDFileName(fileName); //获得文件上传的数据 InputStream is=fileItem.getInputStream(); //获得文件上传的路径 String path = this.getServletContext().getRealPath("/foodImage"); url=path+"\\"+uuidFileName; OutputStream os=new FileOutputStream(url); int len=0; byte[] b=new byte[1024]; while((len=is.read(b))!=-1) { os.write(b, 0, len); } is.close(); os.close(); } } }// 检验菜名 Iterator<Food> iterator = foodList.iterator(); boolean flag = false; Food testFood = null; while(iterator.hasNext()) { testFood = iterator.next(); if(testFood.getId().equals(map.get("id"))) { flag=true; break; } } if(flag==false) { String msg = "您要修改的id:"+ map.get("id") + "菜单里没有"; request.setAttribute("msg", msg); request.getRequestDispatcher("/updateFood.jsp").forward(request, response); }else { Food food = new Food(); food.setId(map.get("id")); food.setFoodName(map.get("foodName")); food.setTaste(map.get("taste")); food.setPath(url); food.setPrice((map.get("price"))); food.setDescribe(map.get("description")); FoodDaoImpl1.updateFood(food); System.out.println("更新后的food为"+food); this.getServletContext().setAttribute(" FoodDaoImpl1", FoodDaoImpl1); request.getRequestDispatcher("/showFoodList.jsp").forward(request, response); // response.sendRedirect(request.getContextPath()+"/showFoodList.jsp"); } } catch (FileUploadException e) { // TODO Auto-generated catch block e.printStackTrace(); } }}package com.imooc.servlet;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import com.imooc.food.Food;import com.imooc.food.FoodDaoImpl;/** * Servlet implementation class InitServlet */public class InitServlet extends HttpServlet { @Override public void init() throws ServletException { //创建FoodDaoImpl对象 FoodDaoImpl FoodDaoImpl1=new FoodDaoImpl(); // 创建一个List集合用于保存用户注册的信息 List<Food> foodList=FoodDaoImpl1.getDb(); //将List保存到ServletContext作用域中 this.getServletContext().setAttribute("list", foodList); this.getServletContext().setAttribute("foodList", foodList); } }package com.imooc.servlet;import java.io.IOException;import java.util.List;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import com.imooc.food.Food;import com.imooc.food.FoodDaoImpl;/** * Servlet implementation class SelectServlet */@WebServlet("/SelectServlet")public class SelectServlet extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public SelectServlet() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("UTF-8"); FoodDaoImpl FoodDaoImpl1=(FoodDaoImpl) this.getServletContext().getAttribute("FoodDaoImpl1"); List<Food> list=FoodDaoImpl1.getDb(); String foodName = request.getParameter("foodName"); Food foodSearch=FoodDaoImpl1.getFoodByName(foodName); boolean flag=false; if(foodSearch!=null) { flag=true; } if(flag==false) { String msg = "对不起，您要查找的"+foodName+"我们家餐馆没有"; request.setAttribute("msg", msg); request.getRequestDispatcher("/selectFoodByName.jsp").forward(request, response); }else { request.getSession().setAttribute("foodSearch", foodSearch); request.getRequestDispatcher("/showFoodList.jsp").forward(request, response); } }} |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | package com.imooc.utils;import java.util.UUID;public class UploadUtils { /** * 生成唯一的文件名 */ public static String getUUIDFileName(String fileName) { //将文件名的前面部分进行截取：xx.jpg --> .jpg int idx=fileName.lastIndexOf("."); String extention=fileName.substring(idx); String uuidFileName=UUID.randomUUID().toString().replace("-", "")+extention; return uuidFileName; }} |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 | <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><% String path = request.getContextPath(); //path是project的名字 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE html><html><head><base href="<%=basePath%>"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>添加菜品</title><style type="text/css"></style></head><body> <center> <h1>菜品添加</h1> <% String msg=""; if(request.getAttribute("msg")!=null){ msg=(String)request.getAttribute("msg"); } %> <h2 style="color: red;font-weight: bolder;">${requestScope.msg }</h2> <form action="<%=basePath%>/FoodAddServlet" method="post" enctype="multipart/form-data"> <table border="1px" width="400px" cellspacing="0px" cellpadding="0px"> <tr> <td>菜品 ID</td> <td><input type="text" name="id"></td> </tr> <tr> <td>菜 名</td> <td><input type="text" name="foodName"></td> </tr> <tr> <td>口 味</td> <td> <input type="radio" name="taste" value="香辣">香辣 <input type="radio" name="taste" value="微辣">微辣 <input type="radio" name="taste" value="麻辣">麻辣 <input type="radio" name="taste" value="不辣">不辣 </td> </tr> <tr> <td>菜品图片</td> <td><input type="file" name="foodImage"></td> </tr> <tr> <td>价 格</td> <td><input type="text" name="price"></td> </tr> <tr> <td>菜品描述</td> <td> <textarea name="description"></textarea> </td> </tr> <tr style="text-align:center;width:20px"> <td colspan="2"> <input type="submit" value="添加"> <input type="reset" value="重置"> </td> </tr> </table> </form> </center></body></html><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><% String path = request.getContextPath(); //path是project的名字 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE html><html><head><base href="<%=basePath%>"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>菜品删除(根据ID删)</title><style type="text/css"></style></head><body> <center> <h1>菜品删除(根据ID删除)</h1> <h2 style="color: red;font-weight: bolder;">${requestScope.msg }</h2> <form action="<%=basePath%>/FoodDeleteServlet" method="post"> <table width="400px" border="1px" cellspacing="0px" cellpadding="0px"> <tr> <td>菜品ID</td> <td><input type="text" name="id"></td> </tr> <tr> <td colspan="2" style="text-align:center"><input type="submit" value="删除"></td> </tr> </table> </form> </center></body></html><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html><html><head> <meta charset="UTF-8"> <title>Document</title></head><body> <p><a href="addFood.jsp" target="main">菜品添加</a></p> <p><a href="selectFood.jsp" target="main">菜品查询</a></p> <p><a href="updateFood.jsp" target="main">菜品修改</a></p> <p><a href="deleteById.jsp" target="main">菜品删除</a></p></body></html><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><% String path = request.getContextPath(); //path是project的名字 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE html><html><head><base href="<%=basePath%>"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>菜品查询选项页面</title><style type="text/css"></style></head><body> <center> <p><a href="/showFoodList.jsp">查询所有菜品信息</a></p> <p><a href="/selectFoodByName.jsp">菜名查询</a></p> </center></body></html><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><% String path = request.getContextPath(); //path是project的名字 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE html><html><head><base href="<%=basePath%>"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>菜名查询</title><style type="text/css"></style></head><body> <center> <h1>菜名查询</h1> <% String msg = ""; if(request.getAttribute("msg")!=null){ msg = (String) request.getAttribute("msg"); } %> <h2 style="color: red;font-weight: bolder;"><%=msg %></h2> <form action="<%=basePath%>/SelectServlet" method="post"> <input type="hidden" name="type" value="2"> <table width="400px" border="1px" cellspacing="0px" cellpadding="0px"> <tr> <td>菜名</td> <td><input type="text" name="foodName"></td> </tr> <tr> <td colspan="2" style="text-align:center"><input type="submit" value="查询"></td> </tr> </table> </form> </center></body></html><%@page import="com.imooc.food.Food"%><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %><!DOCTYPE html><html><head><% String basePath=request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+request.getContextPath()+"/";%><base href="<%=basePath%>"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>菜品管理系统</title></head><frameset rows="20%,*"> <frame src="./top.jsp"></frame> <frameset cols="10%,*"> <frame src="./left.jsp"></frame> <frame name="main"></frame> </frameset></frameset></html><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@page import="com.imooc.food.Food"%><%@page import="com.imooc.food.FoodDaoImpl"%><%@page import="java.util.List" %><!DOCTYPE html><html><head><% String basePath=request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+request.getContextPath()+"/";%><base href="<%=basePath%>"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>菜品信息展示</title><style type="text/css"></style></head><body> <center> <h1>菜品查询</h1> <table border="1px" cellspacing="0px" cellpadding="0px" width="800px"> <thead> <tr> <th>菜品ID</th> <th>菜名</th> <th>口味</th> <th>菜品图片</th> <th>价格</th> <th>菜品描述</th> </tr> </thead> <tbody> <% FoodDaoImpl impl=new FoodDaoImpl(); List<Food> list=impl.getAllFood(); for(Food food:list){ String name=food.getPath(); System.out.print(name); int idx=food.getPath().lastIndexOf("\\"); String img=food.getPath().substring(idx+1); %> <tr> <td><%=food.getId() %></td> <td><%=food.getFoodName() %></td> <td><%=food.getTaste() %></td> <td><img src="/menu_food/foodImage/<%=img %>"></td> <td><%=food.getPrice() %></td> <td><%=food.getDescribe() %></td> </tr> <% } %> </tbody> </table> </center></body></html><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html><html><head> <meta charset="UTF-8"> <title>菜品后台管理系统</title></head><body> <center> <h1>菜品后台管理系统</h1> </center></body></html><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><% String path = request.getContextPath(); //path是project的名字 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE html><html><head><base href="<%=basePath%>"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>菜品修改(根据菜品ID进行修改)</title><style type="text/css"></style></head><body> <center> <h1>根据菜品ID修改</h1> <form action="<%=basePath%>/FoodUpdateServlet" method="post" enctype="multipart/form-data"> <table border="1px" width="400px" cellspacing="0px" cellpadding="0px"> <tr> <td>修改ID</td> <td><input type="text" name="id"></td> </tr> <tr> <td>菜 名</td> <td><input type="text" name="foodName"></td> </tr> <tr> <td>口 味</td> <td> <input type="radio" name="taste" value="香辣">香辣 <input type="radio" name="taste" value="微辣">微辣 <input type="radio" name="taste" value="麻辣">麻辣 <input type="radio" name="taste" value="不辣">不辣 </td> </tr> <tr> <td>菜品图片</td> <td><input type="file" name="foodImage"></td> </tr> <tr> <td>价 格</td> <td><input type="text" name="price"></td> </tr> <tr> <td>菜品描述</td> <td> <textarea name="description"></textarea> </td> </tr> <tr style="text-align:center;width:20px"> <td colspan="2"> <input type="submit" value="修改"> <input type="reset" value="重置"> </td> </tr> </table> </form> </center></body></html> |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | <?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"> <display-name>menu_food</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <servlet> <description></description> <display-name>InitServlet</display-name> <servlet-name>InitServlet</servlet-name> <servlet-class>com.imooc.servlet.InitServlet</servlet-class> <load-on-startup>2</load-on-startup> </servlet> <servlet-mapping> <servlet-name>InitServlet</servlet-name> <url-pattern>/InitServlet</url-pattern> </servlet-mapping> </web-app> |
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