druid link database

Used jar package

commons-beanutils-1.8.0.jar
commons-logging-1.1.3.jar
druid-1.0.9.jar
mysql-connector-java-5.1.18-bin.jar
spring-beans-3.2.5.RELEASE.jar
spring-context-3.2.5.RELEASE.jar
spring-core-3.2.5.RELEASE.jar
spring-expression-3.2.5.RELEASE.jar
spring-jdbc-3.2.5.RELEASE.jar
spring-tx-3.2.5.RELEASE.jar

The profile connection mysql
 configuration file # druid.properties 
driverClassName = com.mysql.jdbc.Driver 
URL = JDBC: mysql: //127.0.0.1: 3306 / DB1 
username = 
password = 
# Number of initialization connection 
initialSize. 5 = 
# Maximum Connections number of 
maxActive = 10 
# maximum timeout 
maxWait = 3000 

tool to connect database

com.alibaba.druid.pool.DruidDataSourceFactory Import; 

Import the javax.sql.DataSource; 
Import java.io.IOException; 
Import a java.io.InputStream; 
Import the java.sql.Connection; 
Import java.sql.SQLException; 
Import Classes in java.util .properties; 

public class JDBCUtil { 
// definition data source 
    Private the dataSource static DS; 
    static { 

        the try { 
            // definition of a Properties object 
            Properties Pro = new new Properties (); 
            // get the address of the druid, bytecode obtained 
            InputStream is = JDBCUtil . .class.getClassLoader () the getResourceAsStream ( "druid.properties"); 
            pro.load (IS); 
            DS = DruidDataSourceFactory.createDataSource (Pro);
        The catch} (IOException E) { 
            e.printStackTrace (); 
        } the catch (Exception E) { 
            e.printStackTrace (); 
        } 

    } 
    public static getDataSource the DataSource () { 
        return DS; 
    } 
    public static Connection the getConnection () throws SQLException { 
        return DS .getConnection (); 
    } 
} 

database operation method CRUD

public class UserDaoImp implements UserDao{

//声明JDBCTemplate
private JdbcTemplate template=new JdbcTemplate(JDBCUtil.getDataSource());

// if the username and password when the user logs on, etc.

@Override
public User userLogin(User user) {
    User user1 = null;
    try {
        String sql = "select * from user where username=? and password=?";
        user1 = template.queryForObject(sql,
                new BeanPropertyRowMapper<User>(User.class),
                user.getUsername(),
                user.getPassword());
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
    return user1;
}

// all the data look-up table

@Override
public List<User> users() {
    String sql="select * from user";
    List<User> maps = template.query(sql, new BeanPropertyRowMapper<User>(User.class));
    return maps;
}

//delete data

@Override
public void delUser(int id) {
    String sql="delete from user where id=?";
    template.update(sql,id);
}
//添加数据

public void addUser(User user) {
    String sql="insert into user(username,password,name,deptid,orgid,createdate) values('nc123456','nc123456',?,?,?,?)";
    template.update(sql,user.getName(),user.getDeptid(),user.getOrgid(),new Date());
}

//change the data

@Override
public void updateUser(User user) {
    String sql="update user set deptid=?,orgid=? where id=?";
    template.update(sql,user.getDeptid(),user.getOrgid(),user.getId());
}

}

JSP

<table class="table table-hover table-condensed table-bordered" align="center">

    <tr style="background-color: #b2dba1;text: center" >
        <th><label class="checkbox-inline">
            <input type="checkbox" name="uid" id="firstcb">
        </label></th>
        <th>序号</th>
        <th>姓名</th>
        <th>组织序号</th>
        <th>部门序号</th>
        <th>日期</th>
        <th>操作</th>
    </tr>
    <c:forEach items="${users}" varStatus="list" var="lis">
        <tr>
            <td><label class="checkbox-inline">
                <input type="checkbox" name="uid" value="${lis.id}">
            </label></td>
            <td>${list.count}</td>
            <td>${lis.name}</td>
            <td>${lis.orgid}</td>
            <td>${lis.deptid}</td>
            <td>${lis.createdate}</td>
            <td><a class="btn btn-default" href="javascript:update(${lis.id});" role="button">修改</a>
                <a class="btn btn-default" href="javascript:delecte(${lis.id});" role="button">删除</a></td>
        </tr>
    </c:forEach>
</table>