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Various database connection codes (JSP)

Source: Internet
Author: User
Tags db2 getmessage informix postgresql stmt sybase sybase database
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First, JSP connection oracle8/8i/9i database (with thin mode)
Testoracle.jsp is as follows:
<%@ page contenttype= "text/html;charset=gb2312"%>
<%@ page import= "java.sql.*"%>
<body>
<%class.forname ("Oracle.jdbc.driver.OracleDriver"). newinstance ();
String url= "Jdbc:oracle:thin: @localhost: 1521:ORCL";
ORCL for the SID of your database
String user= "Scott";
String password= "Tiger";
Connection conn= drivermanager.getconnection (Url,user,password);
Statement stmt=conn.createstatement (resultset.type_scroll_sensitive,resultset.concur_updatable);
String sql= "SELECT * from Test";
ResultSet rs=stmt.executequery (SQL);
while (Rs.next ()) {%>
Your first field content is: <%=rs.getstring (1)%>
The contents of your second field are: <%=rs.getstring (2)%>
<%}%>
<%out.print ("Successful database operation, congratulations");%>
<%rs.close ();
Stmt.close ();
Conn.close ();
%>
</body>
Second, JSP connection SQL server7.0/2000 database
Testsqlserver.jsp is as follows:
<%@ page contenttype= "text/html;charset=gb2312"%>
<%@ page import= "java.sql.*"%>
<body>
<%class.forname ("Com.microsoft.jdbc.sqlserver.SQLServerDriver"). newinstance ();
String url= "Jdbc:microsoft:sqlserver://localhost:1433;databasename=pubs";
Pubs for your database of
String user= "SA";
String password= "";
　　
Connection conn= drivermanager.getconnection (Url,user,password);
Statement stmt=conn.createstatement (resultset.type_scroll_sensitive,resultset.concur_updatable);
String sql= "SELECT * from Test";
ResultSet rs=stmt.executequery (SQL);
while (Rs.next ()) {%>
Your first field content is: <%=rs.getstring (1)%>
The contents of your second field are: <%=rs.getstring (2)%>
<%}%>
<%out.print ("Successful database operation, congratulations");%>
<%rs.close ();
Stmt.close ();
Conn.close ();
　　
%>
</body>
Third, JSP connection DB2 database
Testdb2.jsp is as follows:
<%@ page contenttype= "text/html;charset=gb2312"%>
<%@ page import= "java.sql.*"%>
<body>
<%class.forname ("Com.ibm.db2.jdbc.app.DB2Driver"). newinstance ();
String url= "Jdbc:db2://localhost:5000/sample";
Sample for your database name
String user= "admin";
String password= "";
Connection conn= drivermanager.getconnection (Url,user,password);
Statement stmt=conn.createstatement (resultset.type_scroll_sensitive,resultset.concur_updatable);
String sql= "SELECT * from Test";
ResultSet rs=stmt.executequery (SQL);
while (Rs.next ()) {%>
Your first field content is: <%=rs.getstring (1)%>
The contents of your second field are: <%=rs.getstring (2)%>
<%}%>
<%out.print ("Successful database operation, congratulations");%>
<%rs.close ();
Stmt.close ();
Conn.close ();
%>
</body>
Four, JSP connection Informix Database
Testinformix.jsp is as follows:
<%@ page contenttype= "text/html;charset=gb2312"%>
<%@ page import= "java.sql.*"%>
<body>
<%class.forname ("Com.informix.jdbc.IfxDriver"). newinstance ();
String URL =
"Jdbc:informix-sqli://123.45.67.89:1533/testdb:informixserver=myserver;
User=testuser;password=testpassword ";
TestDB for your database name
Connection conn= drivermanager.getconnection (URL);
Statement stmt=conn.createstatement (resultset.type_scroll_sensitive,resultset.concur_updatable);
String sql= "SELECT * from Test";
ResultSet rs=stmt.executequery (SQL);
while (Rs.next ()) {%>
Your first field content is: <%=rs.getstring (1)%>
The contents of your second field are: <%=rs.getstring (2)%>
<%}%>
<%out.print ("Successful database operation, congratulations");%>
<%rs.close ();
Stmt.close ();
Conn.close ();
%>
</body>
Five, JSP connection Sybase database
Testmysql.jsp is as follows:
<%@ page contenttype= "text/html;charset=gb2312"%>
<%@ page import= "java.sql.*"%>
<body>
<%class.forname ("Com.sybase.jdbc.SybDriver"). newinstance ();
String url = "Jdbc:sybase:tds:localhost:5007/tsdata";
Tsdata for your database name
Properties sysprops = System.getproperties ();
Sysprops.put ("User", "userid");
Sysprops.put ("Password", "User_password");
Connection conn= drivermanager.getconnection (URL, sysprops);
Statement stmt=conn.createstatement (resultset.type_scroll_sensitive,resultset.concur_updatable);
String sql= "SELECT * from Test";
ResultSet rs=stmt.executequery (SQL);
while (Rs.next ()) {%>
Your first field content is: <%=rs.getstring (1)%>
The contents of your second field are: <%=rs.getstring (2)%>
<%}%>
<%out.print ("Successful database operation, congratulations");%>
<%rs.close ();
Stmt.close ();
Conn.close ();
%>
</body>
Six, JSP connection MySQL database
Testmysql.jsp is as follows:
<%@ page contenttype= "text/html;charset=gb2312"%>
<%@ page import= "java.sql.*"%>
<body>
<%class.forname ("Org.gjt.mm.mysql.Driver"). newinstance ();
String url = "jdbc:mysql://localhost/softforum?user=soft&password=soft1234&useunicode=true& Characterencoding=8859_1 "
TestDB for your database name
Connection conn= drivermanager.getconnection (URL);
Statement stmt=conn.createstatement (resultset.type_scroll_sensitive,resultset.concur_updatable);
String sql= "SELECT * from Test";
ResultSet rs=stmt.executequery (SQL);
while (Rs.next ()) {%>
Your first field content is: <%=rs.getstring (1)%>
The contents of your second field are: <%=rs.getstring (2)%>
<%}%>
<%out.print ("Successful database operation, congratulations");%>
<%rs.close ();
Stmt.close ();
Conn.close ();
%>
</body>
Seven, JSP connection PostgreSQL database
Testmysql.jsp is as follows:
<%@ page contenttype= "text/html;charset=gb2312"%>
<%@ page import= "java.sql.*"%>
<body>
<%class.forname ("Org.postgresql.Driver"). newinstance ();
String url = "Jdbc:postgresql://localhost/soft"
Soft for your database name
String user= "MyUser";
String password= "MyPassword";
Connection conn= drivermanager.getconnection (Url,user,password);
Statement stmt=conn.createstatement (resultset.type_scroll_sensitive,resultset.concur_updatable);
String sql= "SELECT * from Test";
ResultSet rs=stmt.executequery (SQL);
while (Rs.next ()) {%>
Your first field content is: <%=rs.getstring (1)%>
The contents of your second field are: <%=rs.getstring (2)%>
<%}%>
<%out.print ("Successful database operation, congratulations");%>
<%rs.close ();
Stmt.close ();
Conn.close ();
%>
</body>

/*conn.jsp */
<%
  String sdbdriver = "COM.ibm.db2.jdbc.app.DB2Driver";
  String sConnStr = "Jdbc:db2:faq";
  Connection conn = null;
  Statement stmt = null;
  ResultSet rs=null; 
    try {
        Class.forName (sdbdriver);  
 }
    catch (java.lang.ClassNotFoundException e)    {
    out.print ("FAQ ():" + e.getmessage ());
 }
  
  try{
    conn = drivermanager.getconnection (sConnStr, "Wsdemo", " Wsdemo1 ");    
    stmt = Conn.createstatement ();
 }catch (SQLException e) {
    out.print (e.tostring ());
 }
%>

<%@ page language= "java" import= "java.sql.*"%>
<%@ page contenttype= "text/html; charset=gb2312 "%>
<%@ include file= "conn.jsp"%>
<%
.......
int pages=0;
int pagesize=10;
ResultSet result = null;
ResultSet rcount = null;

pages = new Integer (Request.getparameter ("pages")). Intvalue ();

if (pages>0)
{

String sql= "State= ' I'm not stupid '";
int count=0;
try {
Rcount = Stmt.executequery ("SELECT count (ID) as ID from user where" +sql);
catch (SQLException ex) {
Out.print ("Aq.executequery:" + ex.getmessage ());
}
if (Rcount.next ())
Count = Rcount.getint ("id");
Rcount.close ();

if (count>0)
{
Sql= "SELECT * from user where" +sql;
try {
result = Stmt.executequery (SQL);
}
catch (SQLException ex) {
Out.print ("Aq.executequery:" + ex.getmessage ());
}

int i;
String name;
Result.first ();
Result.absolute ((pages-1) *pagesize);
This method jdbc2.0 support. The compiler passed, but did not know if it was related to the driver, so I had to use the following stupid method.
For (i=1;i<= (pages-1) *pagesize;i++)
Result.next ();
for (i=1;i<=pagesize;i++) {
if (Result.next ()) {
Name=result.getstring ("name");
Out.print (name);
}
Result.close ();
int n= (int) (count/pagesize);
if (N*pagesize<count) n++;
if (n>1)
{
for (i=1;i<=n;i++)
Out.print ("<a href=query.jsp?pages=" +i+ ">" +i+ "</a>");
}
}
}
%>

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