然后在你的jsp页面写上调用数据连接类的增删改查就可以了。
不懂hi我
jsp页面中
<%
String sqlgetServiceId="select e.id from eip_service e where e.service_name_en='"+serviceName.substring(serviceName.lastIndexOf("_")+1)+"' and e.service_version=1.0"
int sid=BaseDB.queryId(sqlgetServiceId, null)
%>
BaseDB.java
import java.sql.Connection
import java.sql.DriverManager
import java.sql.PreparedStatement
import java.sql.ResultSet
import java.sql.SQLException
import java.util.regex.Matcher
import java.util.regex.Pattern
public class BaseDB {
public static String URL = "jdbc:oracle:thin:@192.168.174.189:1521:soadb" //版本管理ERP数据库配置
public static String NAME = "SVMDEV"//用户名
public static String PWD = "SVMPWD"//密码
public static PreparedStatement ps =null
public static ResultSet rs =null
public static Connection connection=null
//获取数据库连接信息
public static Connection getConnection() {
try {
Class.forName("oracle.jdbc.OracleDriver")
if (connection==null) {
connection=DriverManager.getConnection(URL, NAME, PWD)
}
} catch (ClassNotFoundException e) {
e.printStackTrace()
} catch (SQLException e) {
e.printStackTrace()
}
return connection
}
//查询数据,根据相关信息查询得到当前服务的某个需要的id
public static int queryId(String sql,String parameter[] ) {
int getId=0
try {
connection=getConnection()
ps=connection.prepareStatement(sql)
if (parameter!=null) {
for (int i = 1i <=parameter.lengthi++) {
ps.setString(i,parameter[i-1])
}
}
rs=ps.executeQuery()
if(rs.next()&&rs!=null){
getId=rs.getInt(1)
}
} catch (SQLException e) {
e.printStackTrace()
}finally{
closeAll(ps, rs, connection)
}
return getId
}
//修改数据
public static int updateData(String sql,String parameter[] ) {
int count=0
try {
connection=getConnection()
ps=connection.prepareStatement(sql)
if (parameter!=null) {
for (int i = 1i <=parameter.lengthi++) {
ps.setString(i,parameter[i-1])
}
}
count=ps.executeUpdate()
} catch (SQLException e) {
e.printStackTrace()
}finally{
closeAll(ps, rs, connection)
}
return count
}
//插入数据
public static int insertData(String sql,String parameter[]) {
int num=0
try {
connection=getConnection()
ps=connection.prepareStatement(sql)
if (parameter!=null) {
for (int i = 0i <parameter.lengthi++) {
ps.setString(i+1,parameter[i])
}
}
num=ps.executeUpdate()
} catch (Exception e) {
e.printStackTrace()
}finally{
closeAll(ps,null,connection)
}
return num
}
//关闭所有
public static void closeAll(PreparedStatement ps,ResultSet rs,Connection connection) {
try {
if (ps!=null) {
ps.close()
}
} catch (Exception e2) {
try {
if (rs!=null) {
rs.close()
rs=null
}
} catch (Exception e3) {
try {
if (connection!=null) {
//connection.close()
//connection=null
}
} catch (Exception e4) {
e4.printStackTrace()
}
}
}
}
}
JSP使用数据库的例子：showByJdbcOdbc.jsp
<%@ page contentType="text/htmlcharset=GB2312" %>
<%@ page import="java.sql.*" %>
<HTML><BODY bgcolor=cyan>
<% Connection con
Statement sql
ResultSet rs
try{ Class.forName("sun.jdbc.odbc.JdbcOdbcDriver")
}
catch(ClassNotFoundException e)
{ out.print(e)
}
try { con=DriverManager.getConnection("jdbc:odbc:mymoon","sa","sa")
sql=con.createStatement()
rs=sql.executeQuery("SELECT * FROM employee WHERE salary>3000")
out.print("<table border=2>")
out.print("<tr>")
out.print("<th width=100>"+"雇员号")
out.print("<th width=100>"+"姓名")
out.print("<th width=50>"+"出生日期")
out.print("<th width=50>"+"薪水")
out.print("</TR>")
while(rs.next())
{ out.print("<tr>")
out.print("<td >"+rs.getString(1)+"</td>")
out.print("<td >"+rs.getString(2)+"</td>")
out.print("<td >"+rs.getDate("birthday")+"</td>")
out.print("<td >"+rs.getFloat("salary")+"</td>")
out.print("</tr>")
}
out.print("</table>")
con.close()
}
catch(SQLException e)
{ out.print(e)
}
%>
</BODY></HTML>
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