SSM框架入門和搭建 十部曲

import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional;

import com.mapper.UserMapper; import com.model.User; import com.service.UserService;

@Service @Transactional public class UserServiceImpl implements UserService{
@Resource public UserMapper userMapper; @Override public List<User> findAllUser() { // TODO Auto-generated method stub List<User> findAllUser = userMapper.findAllUser(); return findAllUser; } }</pre>

@后面的注解一定要加的，不然，會出錯的。第六步：開始寫controller吧 controller，從單詞上就能看到，控制。 寫一個UserController類吧。 

 1 package com.controller;
 2 
 3 import java.util.List;
 4 
 5 import javax.servlet.http.HttpServletRequest;
 6 
 7 import org.springframework.beans.factory.annotation.Autowired;
 8 import org.springframework.stereotype.Controller;
 9 import org.springframework.web.bind.annotation.RequestMapping;
10 
11 import com.model.User;
12 import com.service.UserService;
13 
14 @Controller
15 @RequestMapping("/user")
16 public class UserController {
17     
18     @Autowired
19     private UserService userService;
20     
21     @RequestMapping("/findAllUser")
22     public String findAllUser(HttpServletRequest request){
23         List<User> listUser =  userService.findAllUser();
24         request.setAttribute("listUser", listUser);
25         return "/allUser";
26     }
27 }

去看他們之間的類，去了解他們之間的關系。我覺得了解很重要。

第七步，開始配置xml文件吧，把文件放在config中。

mybatis-config.xml，配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <typeAliases>
        <typeAlias alias="User" type="com.model.User"/>
    </typeAliases>
    <mappers>
        <mapper resource="com/mapper/userMapper.xml" />
    </mappers>
</configuration>

其實，這些代碼是在配置mybatis的時候提前敲好的，