Download - 第 5 章 JSP 中使用数据库

5 JSPJSP

SQL ServerSQLJDBCJDBCJDBC JDBC SQL ServerDB2ACESS

SQL Server1.Microsoft SQL Server 2000Microsoft SQL Server 200032CPU64GB4CPU2GBCPU

2. Pentium 166MHz 64MB 32MB 180MB 170MB 65MB 90MBSQL Server

Windows NT Server 4.0 Windows 2000 Server Windows NT Server Enterprise Edition 4.0 Windows 2000 Advanced Server Windows 2000 Data Center Server MS Windows 98 MS Windows NT Workstation 4.0 MS Windows 2000 Professional MS Windows NT Server 4.0 MS Windows 2000 Server IE5.0SQL Server

SQL Server SQL Server 2000SQL Server

SQL Server SQL Server Microsoft SQL ServerWebWEBSERVERS

SQL Server 6

SQL Server 2000 mastermodelmsdb SQL Server tempdbSQL Server 2000 pubs Northwind

SQL Server1.2.

SQL Server1.Insert

SQL SELECT FROM [WHERE ] ( ) [GROUP BY ] [HAVING ] [ORDER BY ] INSERT INTO tableName(column1,column2,.) VALUES (values1,values2,.)

SQL UPDATE tableName SET column1=values1, cloumn2=values2, [WHERE] DELETE FROM tableName [WHERE]

JDBC JDBC (Java Data Base Connectivity) JavaJDBC SQLJava APIJava Java

JDBC JDBC API JDBC API(APISQL)() SQLAPI

JDBC JDBCJDBC.SQL (DML)(DDL)JDBCjava.sql.ResultSetResultSet

JDBC JDBCJDBCJDBCJavaJDBCODBC BridgeJDBC Native BridgeJDBCNetwork BridgePure Java JDBC Drive

JDBC JDBCODBC Bridge1 JDBC-ODBCJDBCODBCJDBC-ODBCJavaJDBCODBCODBCJDBCODBCMicrosoft WindowsJDBC

JDBC Native Bridge2 JDBC JDBCJDBCJDBCJDBCAPIAPIJDBC-ODBC

JDBCNetwork Bridge3 JDBC JDBCDBMSJDBCDBMSJava

Pure Java JDBC Drive4 JDBC JDBCJDBC

JDBC APIDriverManagerConnectionStatementResultSet

DriverManager DriverManagerJDBCJDBC DriverManager ()DriverManagerJDBC

DriverManagerDriverManagerClass.forName(String driver) driverClassname()Classjava.langforNameClass.forNameimport import java.sql.*;

JDBC-ODBC Class.forName(sun.jdbc.odbc.JdbcOdbcDriver);SQL Server JDBCClass.forName(com.microsoft.jdbc.sqlserver.SQLServerDriver);DB2 JDBCClass.forName(com.ibm.db2.jdbc.app.DB2Driver");mySQL JDBCClass.forName(org.gjt.mm.mysql.Driver);Oracle JDBCClass.forName(oracle.jdbc.driver.OracleDriver);

DriverManagerStatic Connection getConnection(String url, String user, String password) DriverManagerurl Connectionjava.sqlConnection() Connection conn = DriverManager.getConnection (URL,user,password);

DriverManagergetConnection() JDBC URLJDBCJDBC URL JDBCDriverManagernull JDBCJavaSQLException

URL: jdbc : : jdbcURLsub-protocolsub-nameInternetURL //: : JDBC URL

ODBCClass.forName("sun.jdbc.odbc.JdbcOdbcDriver");Connection Conn =DriverManager.getConnection(jdbc:odbc:manage,sa,111000);

Connection ConnetionJavaDriverConnection SQL

ConnectionConnectionStatement createStatement() StatementDatabaseMetaData getMetaData() DatabaseMetaDataPreparedStatement prepareStatement(String sql) PreparedStatementboolean getAutoCommit() ConnectionAutoCommit

ConnectionConnectionvoid setAutoCommit(boolean autoCommit) ConnectionAutoCommitvoid commit() void rollback() void close() Connectionboolean isClosed()

Statement SQLStatementPreparedStatementCallableStatement StatementSQLConnectioncreateStatement( )Statement

Statement

StatementexecuteQuery( )ResultSetSQLString sql = "select * from user where code='7102'";ResultSet rs = Statement.executeQuery(sql);while(rs.next( )) { // process the row}

String sql = "select * from userinfo"; ResultSet rs = statement.executeQuery(sql); String sql = "insert into userinfo values('7107 ','', '[email protected]')"; int rowCount = statement.executeUpdate(sql);

PreparedStatement PreparedStatementStatementSQLSQLRDBMS

String sql = "SELECT * FROM userinfo WHERE name = ? ";?

PreparedStatementConnectionprepareStatement( )ConnectionconnPreparedStatementprepare String sql = "SELECT * FROM userinfo WHERE name = ? ";PreparedStatement prepare = conn.prepareStatement(sql); PreparedStatementSQL

CallableStatementCallableStatementPreparedStatementPreparedStatementStatement

DatabaseMetaDateDatabaseMetaDateString getDatabaseProductName()String getDatabaseProductVersion()String getDriverName()String getDriverVersion()String getURL()String getUserName()

ResultSet ResultSet(Cursor)

Statement st=connection.createStatement (int int );ResultSet

StatementResultSetStatement st=connection.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);

ResultSet

JDBC(1)JDBCClass.forName()classpathJDBCJDBCJDBCDriverManagerDriverManagergetConnection()

JDBC-ODBC Class.forName(sun.jdbc.odbc.JdbcOdbcDriver);SQL Server JDBCClass.forName(com.microsoft.jdbc.sqlserver.SQLServerDriver);DB2 JDBCClass.forName(com.ibm.db2.jdbc.app.DB2Driver");mySQL JDBCClass.forName(org.gjt.mm.mysql.Driver);Oracle JDBCClass.forName(oracle.jdbc.driver.OracleDriver);

SQL ServerClass.forName("com.microsoft.jdbc.sqlserver. SQLServerDriver");Connection con=DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433; DatabaseName=student", "sa", "111000");

MySQLClass.forName("org.gjt.mm.mysql.Driver");Connection Conn = DriverManager.getConnection("jdbc:mysql://localhost:3306:test", " test ", " test");

Oracle Class.forName("oracle.jdbc.driver.OracleDriver");Connection Conn = DriverManager.getConnection("jdbc:oracle:thin: @localhost:1521:test",test",test");BD2Class.forName("com.ibm.db2.jdbc.app.DB2Driver")Connection Conn = DriverManager.getConnection("jdbc:db2://localhost:5000/sample", "db2admin", "111000");

JDBC(2)ConnectionConnectionStatementStatementSQLStatement

//conConnectionconStatementStatement sql=con.createStatemnet();sql.executeUpdate(create table student(id int not null , name varchar(20) not null default name,math int not null default 60, primary key(id)););sql.executeUpdate(insert into student values(1,liyinglin,98));String query=select * from student;ResultSet result=sql.executeQuery(query);

JDBC(3)ResultSetJavaStatement

SQL Server

JDBDODBC

JDBDODBC Connection con; //Connectionconn Statement sql; //Statementsql ResultSet rs; //ResultSetrs try{Class.forName(sun.jdbc.odbc.JdbcOdbcDriver); } // catch(ClassNotFoundException e){} // try { con=DriverManager.getConnection(jdbc:odbc: manage,sa,111000); // sql=con.createStatement(); //SQL rs=sql.executeQuery(SELECT * FROM students); // } catch(IOException ee){}

JDBCSQL ServerJDBCsqlserver-jdbc-beta2.exeJavaJDBC

SQL ServerJDBCJavaJDBCJAR

EclipseProject Explorerchapter02\WEB-INF\libEclipsejarbin

Connection con; Statement sql; ResultSet rs; try{Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver"); } catch(ClassNotFoundException e){} try{ con=DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433; DatabaseName=student", "sa","111000");sql=con.createStatement(); rs=sql.executeQuery("SELECT * FROM students");} catch(IOException ee){}

SQL Serversp3jdbcxp2003sqlserver sp3 [Microsoft][SQLServer 2000 Driver for JDBC]Error establishing socket. 1433 sp3 sqlserversp3_ChinaDown.com.cn_2271.rar

JSP JDBCSQL Server

SCSCSS#SNSEXAGEDEPTCC#CNSCS#C#GRADES#SNSEXAGEDEPTC#CNGRADE(1) 4(2) (3) (4) JSP

JDBCJDBCMySQLOracleJava