Spring+Spring MVC+Spring JDBC+MySql实现简单登录注册

Spring+Spring MVC+Spring JDBC+MySql实现简单登录注册

Model层：

package com.model;

public class User {
private int id;
private String name;
private String password;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}

}

UserDao:

package com.userdao;

public interface UserDao {
public boolean check(String name,String passwod);
public void addUser(String name,String password);
public boolean unit(String name);
}

UserDaoImpl:

package com.userdaoimpl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;

import com.userdao.UserDao;

@Repository
public class UserDaoImpl implements UserDao{

@Autowired
JdbcTemplate jdbcTemplate;

public JdbcTemplate getJdbcTemplate() {
return jdbcTemplate;
}

public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}

@Override
public boolean check(String name, String passwod) {
String sql = "select count(id) from u2 where name=? and password=?";
int i  = jdbcTemplate.queryForInt(sql, new Object[]{name,passwod});
if (i>0) {
return true;
} else {
return false;
}
}

@Override
public void addUser(String name, String password) {
String sql = "insert into u2 (name,password) values(?,?)";
jdbcTemplate.update(sql,new Object[]{name,password});
}

@Override
public boolean unit(String name) {
String sql = "select count(id) from u2 where name=?";
int rs = jdbcTemplate.queryForInt(sql,new Object[]{name});
if (rs>0) {
return true;
}
return false;
}

}

Controller层：

package com.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.userdaoimpl.UserDaoImpl;

@Controller
public class LoginController {

@Autowired
UserDaoImpl userDaoImpl;

public UserDaoImpl getUserDaoImpl() {
return userDaoImpl;
}

public void setUserDaoImpl(UserDaoImpl userDaoImpl) {
this.userDaoImpl = userDaoImpl;
}

@RequestMapping("/login")
public String login(String name,String password,Model model) {
boolean rs = userDaoImpl.check(name, password);
if (rs==true) {
model.addAttribute("name",name);
return "index";
}
return "error";
}
@RequestMapping("/register")
public String register(String name,String password,Model model) {
boolean rs = userDaoImpl.unit(name);
if (rs==false) {
userDaoImpl.addUser(name, password);
return "login";
}
return "error1";
}

}

Spring配置文件：

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd ">
<context:component-scan base-package="com" />
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName"
value="com.mysql.jdbc.Driver">
</property>
<property name="url"
value="jdbc:mysql://localhost:3306/mydata">
</property>
<property name="username" value="root"></property>
<property name="password" value="1996112lin"></property>
</bean>

<bean id="jdbcTemplate"
class="org.springframework.jdbc.core.JdbcTemplate" abstract="false"
lazy-init="false">
<property name="dataSource">
<ref bean="dataSource" />
</property>
</bean>

<bean
class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />

<!-- 配置视图解析器，将ModelAndView及字符串解析为具体的页面 -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/" />
<property name="suffix" value=".jsp" />
</bean>

</beans>

Web.XMl:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> <display-name></display-name>
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 统一字符编码 -->
<filter>
<filter-name>encoding</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>

<filter-mapping>
<filter-name>encoding</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>
</web-app>