數據庫SpringTemplate語法格式

package JDBCTemplate;

import com.alibaba.druid.pool.DruidDataSourceFactory;

import javax.sql.DataSource;
import java.io.IOException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;

public class JDBCUtils {
private static DataSource ds;
static {
try {
Properties pp =new Properties();
pp.load(JDBCUtils.class.getClassLoader().getResourceAsStream(“druid.properties”));
ds = DruidDataSourceFactory.createDataSource(pp);
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
public static DataSource getDataSource(){
return ds;
}
//獲取鏈接
public static Connection getConnection() throws SQLException {
return ds.getConnection();
}
//釋放資源
public static void close(Statement stat,Connection conn){
close(null,stat,conn);
}
public static void close(ResultSet rs,Statement stat,Connection conn){
if(rs!=null){
try {
rs.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if(stat!=null){
try {
stat.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if(conn!=null){
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}

/=====================================/
/測試類/
package JDBCTemplate;

import org.springframework.jdbc.core.JdbcTemplate;

public class Test {
public static void main(String[] args) {
//創建對象
JdbcTemplate template = new JdbcTemplate(JDBCUtils.getDataSource());
//定義SQL語句
String sql = “UPDATE zhifubao SET money = money+1000 WHERE id = 1”;
//執行SQL
int update = template.update(sql);
System.out.println(“update = ” + update);
}
}

/===========配置文件druid.properties內容===========/
driverClassName=com.mysql.jdbc.Driver
url=jdbc:mysql://127.0.0.1:3306/db1
username=root
password=123
initialSize=5
maxActive=10
maxWait=3000