毕设外卖订餐系统JAVA+JSP+数据库+项目部署教程+完整代码

package com.restrant.action; import java.io.File; import java.text.SimpleDateFormat; import java.util.Date; import java.util.List; import java.util.Map; import java.util.Random; import org.apache.struts2.ServletActionContext; import org.apache.struts2.interceptor.RequestAware; import com.opensymphony.xwork2.ActionSupport; import com.restrant.biz.MealBiz; import com.restrant.biz.MealSeriesBiz; import com.restrant.entity.Meal; import com.restrant.entity.Pager; import org.apache.commons.io.FileUtils; public class MealAction extends ActionSupport implements RequestAware { //定义Meal类型属性，用于封装表单参数 private Meal meal; public Meal getMeal() { return meal; } public void setMeal(Meal meal) { this.meal = meal; } MealBiz mealBiz; public void setMealBiz(MealBiz mealBiz) { this.mealBiz = mealBiz; } MealSeriesBiz mealSeriesBiz; public void setMealSeriesBiz(MealSeriesBiz mealSeriesBiz) { this.mealSeriesBiz = mealSeriesBiz; } //分页实体类 private Pager pager; public Pager getPager() { return pager; } public void setPager(Pager pager) { this.pager = pager; } private File doc; //封装上传文件的属性 private String docFileName; //封装上传文件的名称属性 private String docContentType; //封装上传文件的类型属性 Map<String, Object> request; @Override public void setRequest(Map<String, Object> request) { this.request=request; } //获取指定页码、符合查询条件的餐品列表，再转到餐品显示页show.jsp public String toShowMeal() throws Exception { int curPage=1; if(pager!=null) curPage=pager.getCurPage(); List mealList=null; if(meal!=null){ //meal不为空，表示表单中输入了查询条件，此时将获取指定页码、符合查询条件的餐品列表 mealList=mealBiz.getMealByCondition(meal, curPage); //统计符合查询条件的餐品数量,初始化分页类Pager对象，设置perPageRows和rowCount属性 pager=mealBiz.getPagerOfMeal(meal); //将查询条件存入request范围，将作为分页超链接中的参数值 if((meal.getMealseries()!=null) && (meal.getMealseries().getSeriesId()!=null)) request.put("seriesId", new Integer(meal.getMealseries().getSeriesId()) ); if((meal.getMealName()!=null) && !meal.getMealName().equals("")) request.put("mealName", meal.getMealName()); }else{ //meal为空，表示没有指定查询条件，此时将获取指定页码的餐品列表 mealList=mealBiz.getAllMeal(curPage); //获取所有菜品数量,用来初始化分页类Pager对象，并设置其perPageRows和rowCount属性 pager=mealBiz.getPagerOfMeal(); } //设置Pager对象中的待显示页页码 pager.setCurPage(curPage); //将查询获得的列表存入request范围 request.put("mealList", mealList); //获取菜系列表，存入request范围 List mealSeriesList=mealSeriesBiz.getMealSeries(); request.put("mealSeriesList", mealSeriesList); return "toShowMeal"; } public String toShowDetails() throws Exception { Meal aMeal=mealBiz.getMealByMealId(meal.getMealId()); request.put("aMeal", aMeal); return "toShowDetails"; } //获取菜系列表，再转到添加餐品页addMeal.jsp public String toAddMeal() throws Exception { List mealSeriesList=mealSeriesBiz.getMealSeries(); request.put("mealSeriesList", mealSeriesList); return "addMeal"; } //上传餐品图片、添加餐品信息，再转到toShowMeal public String doAddMeal() throws Exception { if(docFileName!=null){ //判断是否选择了上传图片 // 得到当前web工程下的upload目录的在本机的绝对路径，如果没有这个文件夹则会创建 String targetDirectory = ServletActionContext.getServletContext().getRealPath("/mealimages"); //重命名上传文件 String targetFileName = generateFileName(docFileName); //在指定目录创建文件 File target = new File(targetDirectory, targetFileName); //把要上传的文件copy过去 FileUtils.copyFile(doc, target); meal.setMealImage(targetFileName); mealBiz.addMeal(meal); } return "toShowMeal"; } //重命名上传文件 public String generateFileName(String fileName){ String formatDate = new SimpleDateFormat("yyMMddHHmmss").format(new Date()); int random = new Random().nextInt(10000); int position = fileName.lastIndexOf("."); String extension = fileName.substring(position); return formatDate + random + extension; } //获取指定页码、符合查询条件的餐品列表，再转到菜品管理页managemeal.jsp public String toManageMeal() throws Exception { int curPage=1; if(pager!=null) curPage=pager.getCurPage(); List mealList=null; if(meal!=null){ mealList=mealBiz.getMealByCondition(meal, curPage); pager=mealBiz.getPagerOfMeal(meal); if((meal.getMealseries()!=null) && (meal.getMealseries().getSeriesId()!=null)) request.put("seriesId", new Integer(meal.getMealseries().getSeriesId()) ); if((meal.getMealName()!=null) && !meal.getMealName().equals("")) request.put("mealName", meal.getMealName()); }else{ mealList=mealBiz.getAllMeal(curPage); //获取所有菜品数量,用来初始化分页类Pager对象，并设置其perPageRows和rowCount属性 pager=mealBiz.getPagerOfMeal(); } //设置Pager对象中的待显示页页码 pager.setCurPage(curPage); request.put("mealList", mealList); //获取菜系列表，存入request范围 List mealSeriesList=mealSeriesBiz.getMealSeries(); request.put("mealSeriesList", mealSeriesList); return "managemeal"; } //获取要修改的餐品对象，存入request范围，再转到餐品信息修改页 public String toUpdateMeal() throws Exception { //获取要修改的餐品对象，存入request范围 Meal updatedMeal=mealBiz.getMealByMealId(meal.getMealId()); request.put("updatedMeal", updatedMeal); //获取菜系列表，存入request范围 List mealSeriesList=mealSeriesBiz.getMealSeries(); request.put("mealSeriesList", mealSeriesList); return "updateMeal"; } //执行餐品信息修改，再转到toShowMeal public String doUpdateMeal() throws Exception { if(docFileName!=null){ // 得到当前web工程下的upload目录的在本机的绝对路径，如果没有这个文件夹则会创建 String targetDirectory = ServletActionContext.getServletContext().getRealPath("/mealimages"); //重命名上传文件 String targetFileName = generateFileName(docFileName); //在指定目录创建文件 File target = new File(targetDirectory, targetFileName); //把要上传的文件copy过去 FileUtils.copyFile(doc, target); //修改餐品图片 meal.setMealImage(targetFileName); } //更新餐品对象 mealBiz.updateMeal(meal); return "toShowMeal"; } //处理删除餐品对象请求，再转到toManageMeal public String deleteMeal() throws Exception { mealBiz.deleteMeal(meal.getMealId()); return "toManageMeal"; } public File getDoc() { return doc; } public void setDoc(File doc) { this.doc = doc; } public String getDocFileName() { return docFileName; } public void setDocFileName(String docFileName) { this.docFileName = docFileName; } public String getDocContentType() { return docContentType; } public void setDocContentType(String docContentType) { this.docContentType = docContentType; } }