jsporacle資料庫
1. jsp 查詢Oracle資料庫
完整的JSP連接資料庫的查詢並顯示
<%@page contentType="text/html;charset=gb2312"%>
<HTML><BODY>
<hr align="center" width="55%" color="#991111" size="5"/>
<%
Connection conn = null;
PreparedStatement stmt = null;
ResultSet rs = null;
request.setCharacterEncoding("GBK");
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
}
catch(ClassNotFoundException ce){
out.println(ce.getMessage());
}
try{
String url="jdbc:oracle:thin:@localhost:1521:orcl";
conn=DriverManager.getConnection(url,"scott","tiger");
stmt=conn.prepareStatement("select * from emp");
rs=stmt.executeQuery();
out.print("<TABLE BORDER='1' width='55%' cellpadding='3' align=center>");
out.print("<TR><TD>"+"<b>Empno</b>"+"</TD>");
out.print("<TD>"+"<b>Ename</b>"+"</TD>");
out.print("<TD>"+"<b>Job</b>"+"</TD>");
out.print("<TD>"+"<b>Mgr</b>"+"</TD>");
out.print("<TD>"+"<b>hiredate</b>"+"</TD>");
out.print("<TD align=center>"+"<b>Sal</b>"+"</TD>");
out.print("<TD>"+"<b>Comm</b>"+"</TD>");
out.print("<TD>"+"<b>Deptno</b>"+"</TD></TR>");
while(rs.next()){
out.print("<TR><TD>"+rs.getString(1)+"</TD>");
out.print("<TD>"+rs.getString(2)+"</TD>");
out.print("<TD> "+rs.getString(3)+"</TD>");
out.print("<TD>"+rs.getString(4)+"</TD>");
out.print("<TD>"+rs.getString(5)+"</TD>");
out.print("<TD>"+rs.getString(6)+"</TD>");
out.print("<TD>"+rs.getString(7)+"</TD>");
out.print("<TD>"+rs.getString(8)+"</TD></TR>");
}
out.print("</TABLE>");
rs.close();
stmt.close();
conn.close();
}
catch(Exception e){
System.out.println(e.getMessage());
}
%>
</BODY></HTML>
2. 如何在jsp直接訪問oracle資料庫
<%@pagecontentType="text/html;charset=gb2312"%>
<%@pageimport="java.sql.*"%>
<HTML><BODY>
<hralign="center"width="55%"color="#991111"size="5"/>
<%
Connectionconn=null;
PreparedStatementstmt=null;
ResultSetrs=null;
request.setCharacterEncoding("GBK");
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
}
catch(ClassNotFoundExceptionce){
out.println(ce.getMessage());
}
try{
Stringurl="jdbc:oracle:thin:@localhost:1521:orcl";
conn=DriverManager.getConnection(url,"scott","tiger");
stmt=conn.prepareStatement("select*fromemp");
rs=stmt.executeQuery();
out.print("<TABLEBORDER='1'width='55%'cellpadding='3'align=center>");
out.print("<TR><TD>"+"<b>Empno</b>"+"</TD>");
out.print("<TD>"+"<b>Ename</b>"+"</TD>");
out.print("<TD>"+"<b>Job</b>"+"</TD>");
out.print("<TD>"+"<b>Mgr</b>"+"</TD>");
out.print("<TD>"+"<b>hiredate</b>"+"</TD>");
out.print("<TDalign=center>"+"<b>Sal</b>"+"</TD>");
out.print("<TD>"+"<b>Comm</b>"+"</TD>");
out.print("<TD>"+"<b>Deptno</b>"+"</TD></TR>");
while(rs.next()){
out.print("<TR><TD>"+rs.getString(1)+"</TD>");
out.print("<TD>"+rs.getString(2)+"</TD>");
out.print("<TD>"+rs.getString(3)+"</TD>");
out.print("<TD>"+rs.getString(4)+"</TD>");
out.print("<TD>"+rs.getString(5)+"</TD>");
out.print("<TD>"+rs.getString(6)+"</TD>");
out.print("<TD>"+rs.getString(7)+"</TD>");
out.print("<TD>"+rs.getString(8)+"</TD></TR>");
}
out.print("</TABLE>");
rs.close();
stmt.close();
conn.close();
}
catch(Exceptione){
System.out.println(e.getMessage());
}
%>
</BODY></HTML>
3. jsp，用spring框架連接oracle資料庫
用spring框架連接oracle資料庫可以通過配置數據源的方式：
Spring 資料庫連接配置
oracle為例來說明：
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.101)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=orcl)(SERVER=DEDICATED)))" />
<property name="username" value="rootl" />
<property name="password" value="1234" />
</bean>
擴展其他資料庫：
二 DB2
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.ibm.db2.jdbc.app.DB2Driver" />
<property name="url" value="jdbc:db2:thin:@localhost:5000/testDB" />
<property name="username" value="rootl" />
<property name="password" value="1234" />
</bean>
三 SQL Server
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.microsoft.jdbc.sqlserver.SQLServerDriver" />
<property name="url" value="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName = testDB" />
<property name="username" value="rootl" />
<property name="password" value="1234" />
</bean>
三 MySQL
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="org.postgresql.Driver" />
<property name="url" value="jdbc:postgresql://localhost/ testDB" />
<property name="username" value="rootl" />
<property name="password" value="1234" />
</bean>
org.apache.commons.dbcp.BasicDataSource 需要commons-pool.jar，commons-dbcp-1.2.2.jar，commons-collections-3.2.jar三個JAR包