整合Hibernate技术
分析的servlet客户端--->web容器-->web.xml -->servlet来处理 ----->model-->数据库
<--------------------------------|
request.setAttribute(“username”,username);
//转发
request.getDis(“manager/index.jps”).forward(request,response);
---在jsp页面中 ${username}
//重定向
response.sendRiedirect();
分析 struts2客户端----->web容器--->web.xml-->struts2过滤器--->struts.xml--->Action--->model--->数据库
<------------------------------------------------|
Action 要想把数据 传递给jsp
private String username;
public String getUsername(){return username;}
通过什么方式传递
<result type="dispatcher" name="success">/manager/index.jsp</result>
Jsp =---〉 ${username}
Struts2中结果集类型1、 每个action方法都返回一个String类型的值,struts一次请求返回什么值是由这个值确定的。
2、 在配置文件中,每一个action元素的配置都必须有result元素,每一个result对应一个action的返回值。
3、 Result有两个属性:
name:结果的名字,和action中的返回值一样,默认值为success;
type:响应结果类型,默认值为dispatcher.
在下面找到struts-default.xml文件中,如下面所示:
说明:
1、 从上述可以看出总共10种类型
2、 默认类型为ServletDispatcherResult即转发。
3、 结果类型可以是这10种结果类型的任意一种。
Dispatcher类型 (1)、 说明Dispatcher类型是最常用的结果类型,也是struts框架默认的结果类型。
(2)、 例子页面参照:/manager/index.jsp
Action参照:AdminAction
配置文件:struts.xml
在配置文件中,可以有两种写法:
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <package name="test" namespace="/csdn" extends="struts-default"> <action name="adminLogin" method="login"> <!-- 第一种写法 <result name="success">/manager/index.jsp</result> --> <!-- 第二种写法 --> <result name="success"> <param name="location">/manager/index.jsp</param> </result> <result name="login">/index.jsp</result> </action> </package> </struts>
package www.csdn.project.action;
import www.csdn.project.dao.AdminDAO;
import www.csdn.project.dao.AdminDAOImpl;
import www.csdn.project.domain.Admin;
import www.csdn.project.service.AdminService;
import www.csdn.project.service.AdminServiceImpl;
import com.opensymphony.xwork2.ActionSupport;
public class AdminAction extends ActionSupport {
private String adminName;
private String adminPassword;
private Admin entity;
private AdminService adminService = new AdminServiceImpl();
public void setAdminName(String adminName) {
this.adminName = adminName;
}
public void setAdminPassword(String adminPassword) {
this.adminPassword = adminPassword;
}
public Admin getEntity() {
return entity;
}
public String login() {
entity = adminService.login(adminName, adminPassword);
if (entity != null) {
return SUCCESS;
} else {
return LOGIN;
}
}
public String insert() {
boolean b = false;
b = adminService.add(entity);
if(b) {
return SUCCESS;
} else {
return ERROR;
}
}
}
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="/blog_article/<%=basePath%>/index.html">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="/blog_article/styles.css">
-->
</head>
<body>
<div align="center">
<h3>
后台管理登陆界面
</h3>
<hr />
<form
action="/blog_article/${pageContext.request.contextPath}/csdn/adminLogin.action"
method="post">
用户名:
<input type="text" name="adminName" />
<br />
密 码:
<input type="password" name="adminPassword" />
<br />
<input type="submit" value="Login" />
</form>
</div>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="/blog_article/<%=basePath%>/index.html">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="/blog_article/styles.css">
-->
</head>
<body>
<div align="center">
<h3>
欢迎${entity.adminName}后台管理界面!
</h3><br><br>
</div>
</body>
</html>
下面的图说明了location的来历:
Redirect类型 (1)、 说明Redirect属于重定向。如果用redirect类型,则在reuqest作用域的值不能传递到前台。
(2)、 例子页面参照:/manager/index.jsp
Action参照:AdminAction
配置文件:struts.xml
在配置文件中,可以有两种写法:
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <package name="test" namespace="/csdn" extends="struts-default"> <action name="adminLogin" method="login"> <!--第一种写法 <result name="success" type="redirect">/manager/index.jsp</result> --> <!-- 第二种写法 --> <result name="success" type="redirect"> <param name="location">/manager/index.jsp</param> </result> <result name="login">/index.jsp</result> </action> </package> </struts>
package www.csdn.project.action;
import www.csdn.project.dao.AdminDAO;
import www.csdn.project.dao.AdminDAOImpl;
import www.csdn.project.domain.Admin;
import www.csdn.project.service.AdminService;
import www.csdn.project.service.AdminServiceImpl;
import com.opensymphony.xwork2.ActionSupport;
public class AdminAction extends ActionSupport {
private String adminName;
private String adminPassword;
private Admin entity;
private AdminService adminService = new AdminServiceImpl();
public void setAdminName(String adminName) {
this.adminName = adminName;
}
public void setAdminPassword(String adminPassword) {
this.adminPassword = adminPassword;
}
public Admin getEntity() {
return entity;
}
public String login() {
entity = adminService.login(adminName, adminPassword);
if (entity != null) {
return SUCCESS;
} else {
return LOGIN;
}
}
public String insert() {
boolean b = false;
b = adminService.add(entity);
if(b) {
return SUCCESS;
} else {
return ERROR;
}
}
}
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="/blog_article/<%=basePath%>/index.html">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="/blog_article/styles.css">
-->
</head>
<body>
<div align="center">
<h3>
后台管理登陆界面
</h3>
<hr />
<form
action="/blog_article/${pageContext.request.contextPath}/csdn/adminLogin.action"
method="post">
用户名:
<input type="text" name="adminName" />
<br />
密 码:
<input type="password" name="adminPassword" />
<br />
<input type="submit" value="Login" />
</form>
</div>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="/blog_article/<%=basePath%>/index.html">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="/blog_article/styles.css">
-->
</head>
<body>
<div align="center">
<h3>
欢迎${entity.adminName}后台管理界面!
</h3><br><br>
</div>
</body>
</html>
redirectAction类型 (1)、说明
1、 把结果类型重新定向到action
2、 可以接受两种参数
a) actionName: action的名字
b) namespace:命名空间
(2)、 例子在配置文件中
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<package name="test" namespace="/csdn" extends="struts-default">
<action name="adminLogin"
method="login">
<!--
<result name="success" type="redirectAction"> <param
name="actionName">delete.action</param> <param
name="namespace">/csdn</param> </result>
-->
<result name="success" type="redirectAction">csdn/delete.action?name=${entity.adminName}
</result>
<result name="login">/index.jsp</result>
</action>
<action name="delete"
method="delete">
<result>/index.jsp</result>
</action>
</package>
</struts>
package www.csdn.project.action;
import www.csdn.project.dao.AdminDAO;
import www.csdn.project.dao.AdminDAOImpl;
import www.csdn.project.domain.Admin;
import www.csdn.project.service.AdminService;
import www.csdn.project.service.AdminServiceImpl;
import com.opensymphony.xwork2.ActionSupport;
public class AdminAction extends ActionSupport {
private String adminName;
private String adminPassword;
private Admin entity;
private AdminService adminService = new AdminServiceImpl();
public void setAdminName(String adminName) {
this.adminName = adminName;
}
public void setAdminPassword(String adminPassword) {
this.adminPassword = adminPassword;
}
public Admin getEntity() {
return entity;
}
public String login() {
entity = adminService.login(adminName, adminPassword);
if (entity != null) {
return SUCCESS;
} else {
return LOGIN;
}
}
public String insert() {
boolean b = false;
b = adminService.add(entity);
if(b) {
return SUCCESS;
} else {
return ERROR;
}
}
}
package www.csdn.project.actionreslut.test.action;
import com.opensymphony.xwork2.ActionSupport;
public class DeleteAction extends ActionSupport {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String delete(){
System.out.println("删除成功......");
return SUCCESS;
}
}
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="/blog_article/<%=basePath%>/index.html">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="/blog_article/styles.css">
-->
</head>
<body>
<div align="center">
<h3>
后台管理登陆界面
</h3>
<hr />
<form
action="/blog_article/${pageContext.request.contextPath}/csdn/adminLogin.action"
method="post">
用户名:
<input type="text" name="adminName" />
<br />
密 码:
<input type="password" name="adminPassword" />
<br />
<input type="submit" value="Login" />
</form>
</div>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="/blog_article/<%=basePath%>/index.html">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="/blog_article/styles.css">
-->
</head>
<body>
<div align="center">
<h3>
欢迎${entity.adminName}后台管理界面!
</h3><br><br>
</div>
</body>
</html>
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{
return 30.0;
}
-(UIView*) tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
UIView *tableHeaderView = [[UIView alloc] initWithFrame:CGRectMake(40, 0, self.view.frame.size.width - 70, 30)];
tableHeaderView.backgroundColor =[UIColor grayColor];
UITextField *sectionTitleTF1 = [[UITextField alloc] initWithFrame:CGRectMake(58, 0, 500, 30)];
sectionTitleTF1.backgroundColor = [UIColor whiteColor];
[sectionTitleTF1 setBackgroundColor:[UIColor whiteColor]];
[sectionTitleTF1 setFont:[UIFont boldSystemFontOfSize:15]];
[sectionTitleTF1 setBorderStyle:UITextBorderStyleLine];
[sectionTitleTF1 setTextAlignment:UITextAlignmentCenter];
[sectionTitleTF1 setKeyboardType:UIKeyboardTypeNumbersAndPunctuation];
[sectionTitleTF1 becomeFirstResponder];
[tableHeaderView addSubview:sectionTitleTF1];
return tableHeaderView;
}AIDL,
UML,
设计模式,
数据结构,
算法,