mysql创建存储过程并通过java程序调用该存储过程_MySQL

内容导读

互联网集市收集整理的这篇技术教程文章主要介绍了mysql创建存储过程并通过java程序调用该存储过程_MySQL，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含9928字，纯文字阅读大概需要15分钟。

内容图文

create table users_ning(id primary key auto_increment,pwd int); insert into users_ning values(id,1234);insert into users_ning values(id,12345); insert into users_ning values(id,12); insert into users_ning values(id,123);CREATEPROCEDURE login_ning(IN p_id int,IN p_pwd int,OUT flag int)BEGINDECLARE	v_pwd int;select pwd INTO v_pwd from users_ningwhere id = p_id; if v_pwd = p_pwd thenset flag:=1;else select v_pwd;set flag := 0;end if;END package demo20130528;import java.sql.*;import demo20130526.DBUtils;/** * 测试JDBC API调用过程 * @author tarena * */public class ProcedureDemo2 {/** * @param args * @throws Exception*/public static void main(String[] args) throws Exception {System.out.println(login(123, 1234));}/** * 调用过程,实现登录功能 * @param id 考生id * @param pwd 考试密码 * @return if成功:1; if密码错:0; if没有用户:-1 * @throws Exception*/public static int login(int id, int pwd) throws Exception{int flag = -1;String sql = "{call login_ning(?,?,?)}";//*****Connection conn = DBUtils.getConnMySQL();CallableStatement stmt = null;try{stmt = conn.prepareCall(sql);//传递输入参数stmt.setInt(1, id);stmt.setInt(2, pwd);//注册

输出参数,第三个占位符的数据类型是整型stmt.registerOutParameter(3, Types.INTEGER);//*****//执行过程stmt.execute();//获得过程执行后的输出参数flag = stmt.getInt(3);//*****}catch(Exception e){e.printStackTrace();}finally{stmt.close();DBUtils.dbClose();}return flag;}}

package demo20130526;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.sql.Connection;import java.sql.DatabaseMetaData;import java.sql.DriverManager;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.ResultSetMetaData;import java.sql.SQLException;import java.sql.Statement;import java.util.Properties;public class DBUtils {	static Connection conn = null;	static PreparedStatement stmt = null;	static ResultSet rs = null;	static Statement st = null;	static String username = null;	static String password = null;	static String url = null;	static String driverName = null;	public static Connection getConnMySQL() throws Exception {// 连接mysql 返回conn		getUrlUserNamePassWordClassNameMySQL();		conn = DriverManager.getConnection(url, username, password);		// conn.setAutoCommit(false);设置自动提交为false		return conn;	}	public static Connection getConnORCALE() throws Exception {// 连接orcale																// 返回conn		getUrlUserNamePassWordClassNameORCALE();		conn = DriverManager.getConnection(url, username, password);		// conn.setAutoCommit(false);		return conn;	}	private static void getUrlUserNamePassWordClassNameORCALE()			throws Exception {		// 从资源文件 获取 orcale的username password url等信息		Properties pro = new Properties();		File path = new File("src/all.properties");		pro.load(new FileInputStream(path));		String paths = pro.getProperty("filepath");		File file = new File(paths + "orcale.properties");		getFromProperties(file);	}	public static void getUrlUserNamePassWordClassNameMySQL() throws Exception {		// 从资源文件 获取mysql的username password url等信息		Properties pro = new Properties();		File path = new File("src/all.properties");		pro.load(new FileInputStream(path));		String paths = pro.getProperty("filepath");		File file = new File(paths + "mysql.properties");		getFromProperties(file);	}	public static void getFromProperties(File file) throws IOException,			FileNotFoundException, ClassNotFoundException {// 读资源文件的内容		Properties pro = new Properties();		pro.load(new FileInputStream(file));		username = pro.getProperty("username");		password = pro.getProperty("password");		url = pro.getProperty("url");		driverName = pro.getProperty("driverName");		Class.forName(driverName);	}	public static void dbClose() throws Exception {// 关闭所有		if (rs != null)			rs.close();		if (st != null)			st.close();		if (stmt != null)			stmt.close();		if (conn != null)			conn.close();	}	public static ResultSet getById(String tableName, int id) throws Exception {// 用id来查询结果		st = conn.createStatement();		rs = st.executeQuery("select * from " + tableName + "where id=" + id				+ " ");		return rs;	}	public static ResultSet getByAll(String sql, Object... obj)			throws Exception {// 用关键字 实现查询 关键字额可以任意		sql = sql.replaceAll(";", "");		sql = sql.trim();		stmt = conn.prepareStatement(sql);		String[] strs = sql.split("//?");// 将sql 以? 非开		int num = strs.length;// 得到?的个数		int size = obj.length;		for (int i = 1; i <= size; i++) {			stmt.setObject(i, obj[i - 1]);// 数组下标从0开始		}		if (size < num) {			for (int k = size + 1; k <= num; k++) {				stmt.setObject(k, null);// 数组下标从0开始			}		}		rs = stmt.executeQuery();		return rs;	}	public static void doInsert(String sql) throws SQLException {// 传入 sql 语句																	// 实现插入操作		st = conn.createStatement();		st.execute(sql);	}	public static void doInsert(String sql, Object... args) throws Exception {// 传入参数																				// 利用																				// PreparedStatement																				// 实现插入		// 传入的参数是任意多个 因为有Object 。。。args		int size = args.length;// 获得 Object ...obj 传过来的参数的个数		stmt = conn.prepareStatement(sql);		for (int i = 1; i <= size; i++) {			stmt.setObject(i, args[i - 1]);// 数组下标从0开始		}		stmt.execute();	}	public static int doUpdate(String sql) throws Exception {// 传入 sql 实现更新操作		st = conn.createStatement();		int num = st.executeUpdate(sql);		return num;	}	public static void doUpdate(String sql, Object... obj) throws Exception {		// 传入参数 利用 PreparedStatement实现更新		// 传入的参数是任意多个 因为有Object 。。。args		int size = obj.length;// 获得 Object ...obj 传过来的参数的个数		stmt = conn.prepareStatement(sql);		for (int i = 1; i <= size; i++) {			stmt.setObject(i, obj[i - 1]);// 数组下标从0开始		}		stmt.executeUpdate(sql);	}	public static boolean doDeleteById(String tableName, int id)			throws SQLException {// 删除记录 by id		st = conn.createStatement();		boolean b = st.execute("delete from " + tableName + " where id=" + id				+ "");		return b;	}	public static boolean doDeleteByAll(String sql, Object... args)			throws SQLException {// 删除记录 可以按任何关键字		sql = sql.replaceAll(";", "");		sql = sql.trim();		stmt = conn.prepareStatement(sql);		String[] strs = sql.split("//?");// 将sql 以? 非开		int num = strs.length;// 得到?的个数		int size = args.length;		for (int i = 1; i <= size; i++) {			stmt.setObject(i, args[i - 1]);// 数组下标从0开始		}		if (size < num) {			for (int k = size + 1; k <= num; k++) {				stmt.setObject(k, null);// 数组下标从0开始			}		}		boolean b = stmt.execute();		return b;	}	public static void getMetaDate() throws Exception {// 获取数据库元素数据		conn = DBUtils.getConnORCALE();		DatabaseMetaData dmd = conn.getMetaData();		System.out.println(dmd.getDatabaseMajorVersion());		System.out.println(dmd.getDatabaseProductName());		System.out.println(dmd.getDatabaseProductVersion());		System.out.println(dmd.getDatabaseMinorVersion());	}	public static String[] getColumnNamesFromMySQL(String sql) throws Exception {		conn = DBUtils.getConnMySQL();		return getColumnName(sql);	}	public static String[] getColumnNamesFromOrcale(String sql)			throws Exception {		conn = DBUtils.getConnORCALE();		return getColumnName(sql);	}	private static String[] getColumnName(String sql) throws Exception {// 返回表中所有的列名		conn = DBUtils.getConnORCALE();		st = conn.createStatement();		rs = st.executeQuery(sql);		ResultSetMetaData rsmd = rs.getMetaData();		int num = rsmd.getColumnCount();		System.out.println("ColumnCount=" + num);		String[] strs = new String[num];		// 显示列名		for (int i = 1; i <= rsmd.getColumnCount(); i++) {			String str = rsmd.getColumnName(i);			strs[i - 1] = str;			System.out.print(str + "/t");		}		return strs;	}	public static void getColumnDataFromMySQL(String sql) throws Exception {// 

输出表中的数据 conn = DBUtils.getConnMySQL(); getColumnData(sql); } public static void getColumnDataFromORCALEL(String sql) throws Exception {// 输出表中的数据 conn = DBUtils.getConnORCALE(); getColumnData(sql); } public static void getColumnData(String sql) throws Exception {// 输出表中的数据 st = conn.createStatement(); rs = st.executeQuery(sql); ResultSetMetaData rsmd = rs.getMetaData(); System.out .println("/n------------------------------------------------------------------------------------------------------------------------"); while (rs.next()) { for (int i = 1; i <= rsmd.getColumnCount(); i++) { System.out.print(rs.getString(i) + "/t"); } System.out.println(); } System.out .println("------------------------------------------------------------------------------------------------------------------------"); } public static void getTableDataFromOrcale(String sql) throws Exception {// 输出表的列名 // 和表中的全部数据 conn = DBUtils.getConnORCALE(); getTableData(sql); } public static void getTableDataFromMysql(String sql) throws Exception {// 输出表的列名 // 和表中的全部数据 conn = DBUtils.getConnMySQL(); getTableData(sql); } private static void getTableData(String sql) throws SQLException { // getTableDataFromMysql // getTableDataFromOrcale st = conn.createStatement(); rs = st.executeQuery(sql); ResultSetMetaData rsmd = rs.getMetaData(); int num = rsmd.getColumnCount(); System.out.println("ColumnCount=" + num); String[] strs = new String[num]; // 显示列名 for (int i = 1; i <= rsmd.getColumnCount(); i++) { String str = rsmd.getColumnName(i); strs[i - 1] = str; System.out.print(str + "/t"); } System.out .println("/n------------------------------------------------------------------------------------------------------------------------"); while (rs.next()) { for (int i = 1; i <= rsmd.getColumnCount(); i++) { System.out.print(rs.getString(i) + "/t"); } System.out.println(); } System.out .println("------------------------------------------------------------------------------------------------------------------------"); }}

内容总结

以上是互联网集市为您收集整理的mysql创建存储过程并通过java程序调用该存储过程_MySQL全部内容，希望文章能够帮你解决mysql创建存储过程并通过java程序调用该存储过程_MySQL所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错，欢迎将互联网集市网站推荐给程序员好友。

内容备注

版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 gblab@vip.qq.com 举报，一经查实，本站将立刻删除。

内容手机端

---