insert into t_user(username, password, email, useable, addtime)
values(#{username}, #{password}, #{email}, #{useable}, now())
update t_user set password = #{password}, email = #{email}, useable = #{useable} where id = #{id}
insert into t_user(username, password, email, useable, addtime) values
(#{item.username}, #{item.password}, #{item.email}, #{item.useable}, now())
update t_user set password = #{item.password}, email = #{item.email}, useable = #{item.useable} where id = #{item.id}
delete from t_user where id in
#{item}
delete from t_user where id in
#{item}
创建UserService继承BaseService.java;
创建UserController.java实现功能:
package com.xe.demo.controller;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
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.ResponseBody;
import com.xe.demo.common.pojo.AjaxResult;
import com.xe.demo.common.pojo.PageAjax;
import com.xe.demo.model.User;
import com.xe.demo.service.UserService;
@Controller
public class UserController {
@Autowired
private UserService userService;
@ResponseBody
@RequestMapping("/queryById")
public AjaxResult queryById(int id){
// User user = userService.selectById(id);
Object user = userService.selectById(id);
return new AjaxResult(user);
}
@ResponseBody
@RequestMapping("/queryOne")
public AjaxResult queryOne(User user){
Object obj = userService.selectOne(user);
return new AjaxResult(obj);
}
@ResponseBody
@RequestMapping("/queryList")
public AjaxResult queryList(User user){
List list = userService.selectList(user);
return new AjaxResult(list);
}
@ResponseBody
@RequestMapping("/queryPage")
public PageAjax queryPage(User user, PageAjax page){
return userService.selectPage(user, page);
}
@ResponseBody
@RequestMapping("/save")
public AjaxResult save(User user){
//保存map测试
Map map = new HashMap();
map.put("username", user.getUsername());
map.put("email", user.getEmail());
map.put("useable", user.getUseable());
map.put("password", user.getPassword());
userService.save(map);
return new AjaxResult();
}
@ResponseBody
@RequestMapping("/update")
public AjaxResult update(User user){
//更新map测试
// Map map = new HashMap();
// map.put("id", user.getId());
// map.put("email", user.getEmail());
// map.put("useable", user.getUseable());
// map.put("password", user.getPassword());
userService.update(user);
return new AjaxResult();
}
@ResponseBody
@RequestMapping("/batchSave")
public AjaxResult batchSave(){
// List list = new ArrayList();
// User user = null;
// for(int i = 0; i < 10; i ++){
// user = new User();
// String username = "ourte" + i;
// user.setUsername(username);
// user.setPassword("123456");
// user.setUseable(1);
// user.setEmail(username + "@163.com");
// list.add(user);
// }
//map批量保存
List> list = new ArrayList>();
Map map = null;
for(int i = 0; i < 10; i ++){
map = new HashMap();
String username = "csefgg" + i;
map.put("username", username);
map.put("email", username + "@163.com");
map.put("useable", 1);
map.put("password", "658264");
list.add(map);
}
userService.batchSave(list);
return new AjaxResult();
}
@ResponseBody
@RequestMapping("/batchUpdate")
public AjaxResult batchUpdate(){
Integer[] ids = new Integer[]{30, 31, 32};
// List list = new ArrayList();
// User user = null;
// for(int id: ids){
// user = new User();
// user.setId(id);
// user.setPassword("654321");
// user.setUseable(0);
// user.setEmail("[email protected]");
// list.add(user);
// }
//map批量更新
List> list = new ArrayList>();
Map map = null;
for(int id: ids){
map = new HashMap();
map.put("id", id);
map.put("email", "[email protected]");
map.put("useable", 1);
map.put("password", "565656");
list.add(map);
}
userService.batchUpdate(list);
return new AjaxResult();
}
@ResponseBody
@RequestMapping("/delList")
public AjaxResult delList(Integer[] ids){
List list = Arrays.asList(ids);
userService.delList(list);
return new AjaxResult();
}
@ResponseBody
@RequestMapping("/delArray")
public AjaxResult delArray(int[] ids){
userService.delArray(ids);
return new AjaxResult();
}
}
--分组取最大最小常用sql--测试环境if OBJECT_ID('tb') is not null drop table tb;gocreate table tb( col1 int, col2 int, Fcount int)insert into tbselect 11,20,1 union allselect 11,22,1 union allselect 1
一、函数的使用
1.1、定义函数变量
var vName = funcation(params){
}
1.2、函数的调用
函数变量的调用： vName(params);
函数定义时自发调用：(function(params){})(params);
1.3、函数中变量赋值
var a = 'a';
var ff
Mac mini 型号: MC270CH-A RMB:5,688
Apple 对windows的产品支持不好,有以下问题:
1.装完了xp,发现机身很热虽然没有运行任何程序！貌似显卡跑游戏发热一样，按照那样的发热量,那部机子损耗很大,使用寿命受到严重的影响!
2.反观安装了Mac os的展示机，发热量很小，运行了1天温度也没有那么高
&nbs
Follow up for "Search in Rotated Sorted Array":What if duplicates are allowed?
Would this affect the run-time complexity? How and why?
Write a function to determine if a given ta
