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Areschina — Tue, 15 Nov 2005 12:34:00 GMT

��单的struts应用开发（5�Q?/SPAN>

�W�六�?/SPAN>:建立JSP视图��面 (主要有两�?/SPAN>jsp文�g. ��d��面. adduser.jsp 查看��面 viewuser.jsp)

adduser.jsp

<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<%@ taglib uri="/WEB-INF/struts-template.tld" prefix="template" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ page contentType="text/html; charset=gb2312" %>

<BR>adduser <BR>

部门:

ID:

名字:

电话:

viewuser.jsp

<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<%@ taglib uri="/WEB-INF/struts-template.tld" prefix="template" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ page contentType="text/html; charset=GBK" %>

<BR>viewuser <BR>

add

ID	user_name	dep	tel	modify	del
				">modify	">del

��Z�一个�{向页�?/SPAN> (index.jsp)
<%@ page contentType="text/html; charset=gb2312" %>

Untitled Document

<% response.sendRedirect("userAction.do?action=view"); %>

递七�?/SPAN>:建立struts配置文�g (WEB-INF/config-struts.xml)

�q�行�E�序:
启动tomcat
启动IE 在地址栏中输入 http://localhost:8080/mystruts

OK..... �Q�全文完�Q?/SPAN>

Areschina 2005-11-15 20:34 发表评论

Areschina — Tue, 15 Nov 2005 12:33:00 GMT

��单的struts应用开发（1�Q?SPAN lang=EN-US>

�l�于把自��q��q�个��试做完�?SPAN lang=EN-US>. 希望�Ҏ��?SPAN lang=EN-US>struts的新手有所帮助.

(mystruts应用)目录�l�构
mystruts
|-WEB-INF
| |- lib
| | |- struts.jar
| |- classes
| | |- ConnectionPool
| | | |- getDbConnection.class
| | |-mystruts
| | |- user1Action.class
| | |- userAction.class
| | |- userActionForm.class
| | |- userdao.class
| |-struts-bean.tld
| |-struts-config.xml
| |-struts-html.tld
| |-struts-logic.tld
| |-struts-template.tld
|-adduser.jsp
|-index.jsp
|-viewuser.jsp

�W�一�?SPAN lang=EN-US>: 开发环境配�|?SPAN lang=EN-US>

(如果你还没有相关软�g. 请到http://www.apache.org 下蝲)

tomcat5.0 配置 (建立一�?SPAN lang=EN-US> mystruts 应用, �q�拷贝相��x��?SPAN lang=EN-US>)

请在你的tomcat安装目录中找�?SPAN lang=EN-US>\conf\Catalina\localhost 子目�?SPAN lang=EN-US>. 新徏 mystruts.xml 文�g
文�g内容如下. 在这个文件中. 我们��配�|�一个联接池.��h��相关的驱�?SPAN lang=EN-US>.数据库用�?SPAN lang=EN-US>,密码�Ҏ��你自��q��本机配置.
�q�把JDBC驱动拯��一份到 Tomcat 5.0\common\lib 目录�?SPAN lang=EN-US>. ��h�� struts.jar \mystruts\WEB-INF\lib 目录�?SPAN lang=EN-US>.

auth="Container"
type="javax.sql.DataSource"/>

factory
org.apache.commons.dbcp.BasicDataSourceFactory

maxActive
10

maxIdle
5

maxWait
10000

username
sa

password
test

driverClassName
net.sourceforge.jtds.jdbc.Driver

url
jdbc:jtds:sqlserver://192.168.10.223:1433/mystruts

WEB-INF/web.xml (加入struts标记库的支持)

action

org.apache.struts.action.ActionServlet

debug

config

/WEB-INF/struts-config.xml

action

*.do

/WEB-INF/struts-bean.tld

/WEB-INF/struts-html.tld

/WEB-INF/struts-logic.tld

/WEB-INF/struts-template.tld

�Q�未完待�l�）

Areschina 2005-11-15 20:33 发表评论

Areschina — Tue, 15 Nov 2005 12:32:00 GMT

��单的struts应用开发（2�Q?/SPAN>

�W�二�?/SPAN>: 配置数据�?/SPAN>

1.首先创徏数据联接bean, �q�打包到 ConnectionPool, 它将从我们配�|�的联接池中取得可用联接.

// Java Document
package ConnectionPool;
import javax.naming.*;
import javax.sql.*;
import java.sql.*;
import java.io.*;
import java.util.*;

public class getDbConnection {

Connection conn;
Statement stmt;
ResultSet rs=null;

String foo = "Not Connected";
int bar = -1;

public getDbConnection() {
try{
Context ctx = new InitialContext();
if(ctx == null )
throw new Exception("Boom - No Context");

DataSource ds =
(DataSource)ctx.lookup(
"java:comp/env/jdbc/TestDB");

if (ds != null) {
conn = ds.getConnection();

}
}
catch(Exception e) {
e.printStackTrace();
}
}

public Connection getCon()
{
return conn;
}

public void d_close() throws SQLException
{
if (rs != null) {
try { rs.close(); } catch (SQLException e) { ; }
rs = null;
}
if (stmt != null) {
try { stmt.close(); } catch (SQLException e) { ; }
stmt = null;
}
if (conn != null) {
try { conn.close(); } catch (SQLException e) { ; }
conn = null;
}

}

protected void finalize() throws Throwable
{
try { d_close(); } catch (SQLException e) { ; }
}

}

2.创徏数据�?/SPAN>.

数据库名: mystruts

部门�?/SPAN>: mydep

_______________________________________
dep_id dep_name
_______________________________________
1 dep1
2 dep2
3 dep3
4 dep4
_______________________________________

用户�?/SPAN>: myuser
______________________________________________
user_id user_name dep tel
______________________________________________
1 jack 1 0769-2454042
2 max 2 0769-2454043
______________________________________________

(�?/SPAN>: 以上字段��Z��试方便. 全部使用字符�?/SPAN>)

�W�三�?/SPAN>: 创徏ActionForm (userActionForm.java)

package mystruts; //��h��包到mystruts�?/SPAN>.

import org.apache.struts.action.*;
import javax.servlet.http.*;

public class userActionForm extends ActionForm {
private String action="add";
private String dep;
private String tel;
private String user_id;
private String user_name;
public String getAction() {
return action;
}
public void setAction(String action) {
this.action = action;
}
public String getDep() {
return dep;
}
public void setDep(String dep) {
this.dep = dep;
}
public String getTel() {
return tel;
}
public void setTel(String tel) {
this.tel = tel;
}
public String getUser_id() {
return user_id;
}
public void setUser_id(String user_id) {
this.user_id = user_id;
}
public String getUser_name() {
return user_name;
}
public void setUser_name(String user_name) {
this.user_name = user_name;
}
public ActionErrors validate(ActionMapping actionMapping, HttpServletRequest httpServletRequest) {

return null;
}
public void reset(ActionMapping actionMapping, HttpServletRequest httpServletRequest) {
}
} �Q�未完待�l�）

Areschina 2005-11-15 20:32 发表评论

Areschina — Tue, 15 Nov 2005 12:31:00 GMT

��单的struts应用开发（3�Q?/SPAN>

�W�四�?/SPAN>:建立数据库操作对�?/SPAN> (完成对表的增删修改与查询)

package mystruts;

import java.sql.*;
import ConnectionPool.*;
import java.util.*;

public class userdao {
getDbConnection db=null;
Connection con=null;

public userdao() {
}
//-------------------------------------------------------------------
public void userInsert(userActionForm uaf1)
{
db=new getDbConnection();
con=db.getCon();
userActionForm uaf=uaf1;
PreparedStatement ps = null;
String sql="insert into myuser (user_id,user_name,dep,tel) values(?,?,?,?)";
try {

ps = con.prepareStatement(sql);
ps.setString(1,uaf.getUser_id());
ps.setString(2,uaf.getUser_name());
ps.setString(3,uaf.getDep());
ps.setString(4,uaf.getTel());
ps.executeUpdate();
}
catch (SQLException e)
{
System.out.println("sql error");
}
finally
{
try{
con.close();
db.d_close();
}
catch(Exception e) {}
}
}
//---------------------------------------------
public void userUpdate(userActionForm uaf1)
{
db=new getDbConnection();
con=db.getCon();
userActionForm uaf=uaf1;
PreparedStatement ps = null;
String sql="update myuser set user_name=?,dep=?,tel=? where user_id=?";
try {

ps = con.prepareStatement(sql);
ps.setString(1,uaf.getUser_name());
ps.setString(2,uaf.getDep());
ps.setString(3,uaf.getTel());
ps.setString(4,uaf.getUser_id());
ps.executeUpdate();
}
catch (SQLException e)
{
System.out.println("sql error");
}
finally
{
try{
con.close();
db.d_close();
}
catch(Exception e) {}
}
}
//---------------------------------------------
public userActionForm getUser(String key)
{
db=new getDbConnection();
con=db.getCon();
ResultSet rs=null;
userActionForm uaf=new userActionForm();
PreparedStatement ps = null;
String sql="select * from myuser where user_id=?";
try {
ps = con.prepareStatement(sql);
ps.setString(1,key.trim());
rs=ps.executeQuery();
if(rs.next())
{
uaf.setUser_id(rs.getString("user_id"));
uaf.setUser_name(rs.getString("user_name"));
uaf.setDep(rs.getString("dep"));
uaf.setTel(rs.getString("tel"));
uaf.setAction("edit");
}
}
catch (SQLException e)
{
System.out.println("sql error");
}
finally
{
try{
con.close();
db.d_close();
}
catch(Exception e) {}
}
System.out.println("mod"+key);
return uaf;
}
//----------------------------------------
public void delUser(String key)
{
db=new getDbConnection();
con=db.getCon();
PreparedStatement ps = null;
String sql="delete from myuser where user_id=?";
try {
ps = con.prepareStatement(sql);
ps.setString(1,key.trim());
ps.executeUpdate();
}
catch (SQLException e)
{
System.out.println("sql error");
}
finally
{
try{
con.close();
db.d_close();
}
catch(Exception e) {}
}
System.out.println("del"+key);
}
//----------------------------------
public Collection getAlluser()
{
db=new getDbConnection();
con=db.getCon();
ResultSet rs=null;
userActionForm uaf=new userActionForm();
PreparedStatement ps = null;

ArrayList rslist = new ArrayList();

String sql="select * from myuser u,mydep d where u.dep=d.dep_id";
try {
ps = con.prepareStatement(sql);
rs=ps.executeQuery();
while(rs.next())
{
HashMap rscol = new HashMap();
rscol.put("user_id",rs.getString("user_id"));
rscol.put("user_name",rs.getString("user_name"));
rscol.put("dep",rs.getString("dep"));
rscol.put("dep_name",rs.getString("dep_name"));
rscol.put("tel",rs.getString("tel"));
rslist.add(rscol);
}
}
catch (SQLException e)
{
System.out.println("sql error");
}
finally
{
try{
con.close();
db.d_close();
}
catch(Exception e) {}
}
return rslist;
}
//----------------------------------
} �Q�未完待�l�）

Areschina 2005-11-15 20:31 发表评论

Areschina — Tue, 15 Nov 2005 12:30:00 GMT

��单的struts应用开发（4�Q?/SPAN>

�W�五�?/SPAN>:建立Action (userAction.java)

�q�里我们��徏产两�?/SPAN>Action .

userAction.java ��完成以下工�?/SPAN>.
1.��d��(前期数据准备. ��L��提取部门资料.�q�传递给adduser.jsp)
2.修改(前期数据准备)
3.删除
4.查看所有用戯��?/SPAN>.

user1Action.java ��完成以下工�?/SPAN>
1.��d��用户(�?/SPAN>myuser表操�?/SPAN>)
2.修改用户(�?/SPAN>myuser表操�?/SPAN>)

package mystruts;

import org.apache.struts.action.*;
import javax.servlet.http.*;
import mystruts.*;
import java.util.*;
import java.sql.*;
import ConnectionPool.*;

public class userAction extends Action {
public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws Exception
{
userdao dao=new userdao();
HttpServletRequest request=httpServletRequest;
String action;
if(request.getParameter("action").equals("") || request.getParameter("action")==null)
{
action="add";
}
else
{
action=request.getParameter("action");
}
if(action.equals("add"))
{
request.setAttribute("dep",this.getDep());
return (actionMapping.findForward("add"));
}
if(action.equals("edit"))
{
String key=request.getParameter("key");
request.setAttribute("dep",this.getDep());
request.setAttribute("userActionForm",dao.getUser(key));
return (actionMapping.findForward("add"));
}
if(action.equals("del"))
{
String key=request.getParameter("key");
dao.delUser(key);
return (actionMapping.findForward("delview"));
}
if(action.equals("view"))
{
request.setAttribute("rs",dao.getAlluser());
return (actionMapping.findForward("view"));
}

return null;
}
//---------------------------------------------
public Collection getDep()
{
getDbConnection db=new getDbConnection();
Connection con=db.getCon();
ResultSet rs=null;

PreparedStatement ps = null;

ArrayList rslist = new ArrayList();

String sql="select * from mydep";
try {
ps = con.prepareStatement(sql);
rs=ps.executeQuery();
while(rs.next())
{
HashMap rscol = new HashMap();
rscol.put("id",rs.getString("dep_id"));
rscol.put("name1",rs.getString("dep_name"));
rslist.add(rscol);
}
}
catch (SQLException e)
{
System.out.println("sql error");
}
finally
{
try{
con.close();
db.d_close();
}
catch(Exception e) {}
}
return rslist;
}
}

package mystruts;

import org.apache.struts.action.*;
import javax.servlet.http.*;

public class user1Action extends Action {
public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws Exception
{
userActionForm uaf = (userActionForm) actionForm;
if(uaf.getAction().equals("add"))
{
new userdao().userInsert(uaf);
return (actionMapping.findForward("view"));
}
if(uaf.getAction().equals("edit"))
{
new userdao().userUpdate(uaf);
return (actionMapping.findForward("view"));
}
return null;
}
}

Areschina 2005-11-15 20:30 发表评论