完整的SSM练习案例

package net.bwie.controller.snow; import java.io.IOException; import java.io.PrintWriter; import java.text.SimpleDateFormat; import java.util.Date; import java.util.HashMap; import java.util.List; import javax.servlet.http.HttpServletResponse; import net.bwie.bean.snow.SnowConsume; import net.bwie.bean.snow.SnowVip; import net.bwie.service.SnowService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.servlet.ModelAndView; /** * 控制器 * * @author Administrator * */ @Controller @RequestMapping("snowCenter") public class SnowController { @Autowired private SnowService snowService; // 处理列表全查显示 @RequestMapping("show") public ModelAndView show() { ModelAndView mv = new ModelAndView(); // 获取数据 去访问service List<SnowVip> snowVips = snowService.showAll(); mv.addObject("snowVips", snowVips); // 指定视图 需要有存在的jsp页面 在springMVC的配置文件里已经设置了视图解析规则 mv.setViewName("snowShow"); return mv; } // 处理查询请求 @RequestMapping("querySome") public ModelAndView querySome(@RequestParam(value = "name", required = false) String name, @RequestParam(value = "phone", required = false) String phone, @RequestParam(value = "money", required = false) String money) { ModelAndView mv = new ModelAndView(); HashMap<String, Object> hashMap = new HashMap<>(); hashMap.put("name", name); hashMap.put("phone", phone); if (money != null && !("".equals(money))) { Integer moneyInt = Integer.parseInt(money); hashMap.put("money", moneyInt); } // 去访问service 进行查询 List<SnowVip> snowVips = snowService.showSome(hashMap); mv.addObject("snowVips", snowVips); mv.setViewName("snowShow"); mv.addObject("nameReq", name); mv.addObject("phoneReq", phone); mv.addObject("moneyReq", money); return mv; } // 查看消费记录 @RequestMapping("showHistory") public ModelAndView showHistory(@RequestParam("mid") Integer mid) { ModelAndView mv = new ModelAndView(); // model // 去访问service List<SnowConsume> snowConsumes = snowService.showConsumes(mid); mv.addObject("snowConsumes", snowConsumes); // view mv.setViewName("snowConsume"); return mv; } // 处理消费请求 @RequestMapping("consume") public void consume(@RequestParam("mid") Integer mid, @RequestParam("price") Integer price, HttpServletResponse response) { // 去访问service 消费 生成消费记录 // 用户id 消费金额 消费日期 SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd"); String consumeDate = dateFormat.format(new Date()); HashMap<String, Object> hashMap = new HashMap<>(); hashMap.put("mid", mid); hashMap.put("price", price); hashMap.put("consumeDate", consumeDate); boolean boo = snowService.consume(hashMap); // 响应前端 try { PrintWriter writer = response.getWriter(); if (boo) { writer.write("success"); } else { writer.write("error"); } } catch (IOException e) { e.printStackTrace(); } } @RequestMapping("delSome") public void delSome(@RequestParam("ids") String ids, HttpServletResponse response) { // System.out.println(ids+"--"); // 调用service boolean flag = snowService.removeSome(ids); // 根据处理结果返回 try { PrintWriter writer = response.getWriter(); if (flag) { writer.write("success"); } else { writer.write("error"); } } catch (IOException e) { e.printStackTrace(); } } @RequestMapping("addVip") public void addVip(SnowVip vip, HttpServletResponse response) { System.out.println(vip); vip.setNumbers(vip.getMoney() / vip.getPrice()); // 访问service boolean flag = snowService.addVip(vip); try { PrintWriter writer = response.getWriter(); if (flag) { writer.write("success"); } else { writer.write("error"); } } catch (IOException e) { e.printStackTrace(); } } }