这期内容当中小编将会给大家带来有关Java怎么操作MySQL数据库，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。
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1.引入数据库驱动的jar包 以通过maven引入mysql driver为例
1.2 复制所需maven配置文件到工程的 pom.xml
mysql mysql-connector-java 6.0.6
2.创建数据库连接类DBUtil.java用以连接与关闭数据库
//文件名：DBUtil.java
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class DBUtil {
static String user = "root";
static String password = "root";
static String url = "jdbc:mysql://localhost【数据库地址】:3306【端口】/【数据库名称】?serverTimezone=UTC";
static {
try {
Class.forName("com.mysql.cj.jdbc.Driver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
public static Connection getConnection() {
Connection conn = null;
try {
conn = DriverManager.getConnection(url, user, password);
} catch (SQLException e) {
e.printStackTrace();
}
return conn;
}
public static void closeJDBC(ResultSet rs, Statement stmt, Connection conn) {
if (rs != null) {
try {
rs.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (stmt != null) {
try {
stmt.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}3.在java代码中对表进行操作
3.1 查，删，改类似
//查找table表重的 id和name
String sql = "select id,name from table";
Connection conn = DBUtil.getConnection();
PreparedStatement pstmt = null;
try {
conn.setAutoCommit(false);
pstmt = conn.prepareStatement(sql);
ResultSet rs = pstmt.executeQuery();
json = ResultSetToJson.ResultSetToJsonArray(rs);
}catch (SQLException e){
try {
conn.rollback();
}catch (SQLException e1){
e1.printStackTrace();
}
}finally {
DBUtil.closeJDBC(null, pstmt, conn);
}
return json;3.1 增
int basicinfoID = 0;
String sql = "INSERT INTO tb_resume_basicinfo("
+ "basicinfo_id, realname, gender, birthday, current_loc, "
+ "resident_loc, telephone, email, job_intension, job_experience, head_shot,applicant_id) "
+"VALUES(SEQ_ITOFFER_RESUMEBASICINFO.NEXTVAL,?,?,?,?,?,?,?,?,?,?,?)";
Connection conn = DBUtil.getConnection();
PreparedStatement pstmt = null;
try {
// 关闭自动提交
conn.setAutoCommit(false);
pstmt = conn.prepareStatement(sql);
pstmt.setString(1, basicinfo.getRealName());
pstmt.setString(2, basicinfo.getGender());
pstmt.setTimestamp(3, basicinfo.getBirthday() == null ? null
: new Timestamp(basicinfo.getBirthday().getTime()));
pstmt.setString(4, basicinfo.getCurrentLoc());
pstmt.setString(5, basicinfo.getResidentLoc());
pstmt.setString(6, basicinfo.getTelephone());
pstmt.setString(7, basicinfo.getEmail());
pstmt.setString(8, basicinfo.getJobIntension());
pstmt.setString(9, basicinfo.getJobExperience());
pstmt.setString(10, basicinfo.getHeadShot());
pstmt.setInt(11, applicantID);
pstmt.executeUpdate();
} catch (SQLException e) {
try {
// 事务回滚
conn.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
e.printStackTrace();
} finally {
DBUtil.closeJDBC(null, pstmt, conn);
}上述就是小编为大家分享的Java怎么操作mysql数据库了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注创新互联行业资讯频道。
