# 创建表结构和数据
```mysql
CREATE TABLE `student` (
`id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键',
`name` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT '姓名',
`age` int(11) NULL DEFAULT NULL COMMENT '年龄',
PRIMARY KEY (`id`) USING BTREE
);
INSERT INTO `student` VALUES (1, 'Apollo', 26);
INSERT INTO `student` VALUES (2, 'Paul', 37);
INSERT INTO `student` VALUES (3, 'Tom', 22);
```
# 插入操作
```java
package com.gosuncn;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
public class ConnectionMain {
public static void main(String[] args) throws Exception {
Class.forName("com.mysql.jdbc.Driver");
Connection connect = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/test", "root", "root");
String sql = "INSERT INTO `student`(`name`, `age`) VALUES (?, ?)";
PreparedStatement statement = connect.prepareStatement(sql);
statement.setString(1, "SXS");// 索引从1开始
statement.setInt(2, 80);
boolean flag = statement.execute();
System.out.println(flag);
statement.close();
connect.close();
}
}
```
# 修改操作
```java
package com.gosuncn;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
public class ConnectionMain {
public static void main(String[] args) throws Exception {
Class.forName("com.mysql.jdbc.Driver");
Connection connect = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/test", "root", "root");
String sql = "UPDATE `student` SET `name` = ?, `age` = ? WHERE `id` = 1";
PreparedStatement statement = connect.prepareStatement(sql);
statement.setString(1, "Apollo-UPDATE");// 索引从1开始
statement.setInt(2, 1000);
boolean flag = statement.execute();
System.out.println(flag);
statement.close();
connect.close();
}
}
```
# 删除操作
```java
package com.gosuncn;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
public class ConnectionMain {
public static void main(String[] args) throws Exception {
Class.forName("com.mysql.jdbc.Driver");
Connection connect = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/test", "root", "root");
String sql = "DELETE FROM student WHERE id = ?";
PreparedStatement statement = connect.prepareStatement(sql);
statement.setInt(1, 1);
boolean flag = statement.execute();
System.out.println(flag);
statement.close();
connect.close();
}
}
```
