首先是数据库连接代码类：
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 = 1; i <=parameter.length; i++) {
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 = 1; i <=parameter.length; i++) {
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 = 0; i <parameter.length; i++) {
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();
}
}
}
}
}
追问你好：我们现在做的手动组卷内容 现在的我的问题就是手动的把试题选出来后 不知道怎么放到数据库中 我是个初学者对JSP与数据库之间的知识不是很了解 希望能得到你的帮助 谢谢啦
追答你Q多少？我加你