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Chủ Nhật, 29 tháng 12, 2013

Hiển thị bài viết trong category theo tên Slug

Trong category của phần post bài viết tạo Slug có tên Tiện ích và Slug => tien-ich

Để gọi tất cả bài viết trong Slug ra:
<?php
        global $post;
        $args = array('numberposts' => 10, 'category_name' => 'loi-ich'); //số lượng hiển thị 10 sp
        $posts = get_posts($args);
        foreach ($posts as $post): setup_postdata($post);?>

//Echo nội dung ra ở đây
<?php echo the_post_thumbnail(); ?>
<php echo the_title(); ?>
<?php echo the_content(); ?>

<?php endforeach ?>

Hiển thị dữ liệu category child của page by id

Ví dụ: trong page giới thiệu ta có id nó là 12, và subcategory của page gồm có các trang con
Để hiển thị các trang con có trong trang Giới thiệu đoạn code sau:

$mypages = get_pages(array('post_type' => 'page', 'number' => '6', 'child_of' => '12', 'sort_column' => 'post_date', 'sort_order' => 'desc'));

        foreach ($mypages as $pages) {
            $content = $pages->post_content;//lấy nội dung
            ?>
// HIỂN THỊ NỘI DUNG RA
<div class="title-pro-home">
                    <?php echo $pages->post_title; ?> //lấy post title
<?PHP echo $content ;?>
                </div>
                <div class="img-pro-home"><?php echo get_the_post_thumbnail($pages->ID, 'medium'); ?> //lấy thumbnail
</div>
<?php } ?>

Thứ Tư, 5 tháng 6, 2013

Action, ActionForm trong struts

Trên form feedback khi nhập thông tin vào form sau đó submit tất cả dữ liệu trên form sẽ được hiển thị qua trang khác.
- Trang index.jsp

Trang kết quả: feekback.jsp

Trang index.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
    <%@taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<html:form action="feakback.do">
<table>
<tr align="center" style="height: 40px;font-size: 25px;font-weight: bold"><td colspan=2">FeekBack</td></tr>
<tr>
    <td>Name:</td>
    <td><html:text property="name" name="feakBackActionForm"/></td>
</tr>
<tr>
    <td>Sex:</td>
    <td>
        <html:radio property="sex" value="F" name="feakBackActionForm">Female</html:radio>
        <html:radio property="sex" value="M" name="feakBackActionForm">Male</html:radio>
    </td>
</tr>
<tr>
    <td>Comments:</td>
    <td><html:textarea property="comments" name="feakBackActionForm"></html:textarea>
</td>
</tr>
<tr><td colspan="2"><html:submit/></td></tr>
</table>
</html:form>
</body>
</html>
Trang feekback.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
    <%@taglib uri="/WEB-INF/struts-bean.tld" prefix="bean"%>
    <%@taglib uri="http://jakarta.apache.org/struts/tags-logic" prefix="logic" %>

<h3>FeekBack</h3>
<body>
Name :<bean:write name="feakBackActionForm" property="name"/><br>
Sex :<logic:equal name="feakBackActionForm" property="sex" value="M">Male</logic:equal>
<logic:equal value="F" name="feakBackActionForm" property="sex">Female</logic:equal>
<br></br>
Comments : <bean:write name="feakBackActionForm" property="comments"/>
</body>
FeakBackAction

public class FeakBackAction extends Action {
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    // TODO Auto-generated method stub

    FeakBackActionForm frm=(FeakBackActionForm)form;
    if(frm.getName().equals(""))
    {
    return mapping.findForward("tb");
    }else
    return mapping.findForward("tc");

}}
FeakBackActionForm
package pack;

import org.apache.struts.action.ActionForm;

public class FeakBackActionForm extends ActionForm {

private static final long serialVersionUID = 1L;
private String name;
private String sex;
private String comments;

public FeakBackActionForm(){
}
public FeakBackActionForm(String name,String sex,String comments){
    this.name=name;
    this.sex=sex;
    this.comments=comments;
}

public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public String getSex() {
    return sex;
}
public void setSex(String sex) {
    this.sex = sex;
}
public String getComments() {
    return comments;
}
public void setComments(String comments) {
    this.comments = comments;
}

}
struts-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC
          "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
          "http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">
<struts-config>
    <form-beans>
        <form-bean name="feakBackActionForm" type="pack.FeakBackActionForm"></form-bean>
    </form-beans>
    <action-mappings>
        <action path="/feakback" name="feakBackActionForm" scope="request" type="pack.FeakBackAction">
        <forward name="tc" path="/feedback.jsp"></forward>
        </action>
    </action-mappings>
</struts-config>

trong struts

In danh sách nhân viên sử dụng tag <logic:iterate> trong struts, như bên dưới

Users class
package packClass;
public class Products {
private String name;
private String age;

public Products(String age,String name){
    this.age=age;
    this.name=name;
}
public String getAge() {
    return age;
}
public void setAge(String age) {
    this.age = age;
}
public String getName(){
    return name;
}
public void setName(String name){
    this.name=name;
}
}
ListAction

import packClass.Products;

public class ListProductsAction extends Action {
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    // TODO Auto-generated method stub
    List<Users> listusers=new ArrayList<Users>();

    listusers.add(new Users("20","Nguyen ngoc bich"));
    listusers.add(new Users("21","Tran thi thuy"));
    listusers.add(new Users("22","Le van troi"));
    listusers.add(new Users("23","Nguyen cong"));
    listusers.add(new Users("24","Luu chi binh"));
    request.setAttribute("listusers", listusers);
    return mapping.findForward("listusers");

}
}
struts-config.xml

<action path="/list" type="pack.ListAction" scope="request">
<forward name="listusers" path="/list.jsp"></forward>
</action>
list.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
     <%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean"%>
    <%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<body>

<table border="1" style="text-align: center; border: 1px solid ;">
<tr>
<TH>Name</TH>
<TH>Age</TH>
</tr>
<logic:iterate id="listid" name="listusers">
    <tr>
        <td> <bean:write name="listid" property="name"/></td>
        <td> <bean:write name="listid" property="age"/>   </td>
    </tr>
    </logic:iterate>
</table>
</body>
</html>

Login đơn giản với struts

Thư mục web gồm có các lib trên

Thực hiện login đơn giản ,
- Khi nhập username và pasword giống nhau thì đăng nhập thành công và chuyển đến trang success.jsp hiển thị username vừa nhập
- Ngược lại trả về trang login (index.jsp)

Trong file struts-config.xml ta có:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC
          "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
          "http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">
<struts-config>
    <form-beans>
       <form-bean name="loginActionForm" type="pack.LoginActionForm"></form-bean>
    </form-beans>

    <action-mappings>
       <action path="/login" name="loginActionForm" scope="session" type="pack.LoginAction">
       <forward name="failed" path="/index.jsp"></forward>
       <forward name="success" path="/success.jsp"></forward>
       </action>

    </action-mappings>
</struts-config>
File index.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>login</title>
</head>
<body>
<center>
<h2>Login</h2>
<html:form action="/login">
User name: <html:text property="usern" name="loginActionForm"/><br>
Password : <html:text property="pass" name="loginActionForm"/><br>
<html:submit/>
</html:form>
</center>
</body>
</html>
Trang success.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@taglib uri="/WEB-INF/struts-bean.tld" prefix="bean"%>

<h2>Login successful</h2>
Your user name is : <bean:write property="usern" name="loginActionForm" />
Trong LoginActionForm
package pack;
import org.apache.struts.action.ActionForm;

public class LoginActionForm extends ActionForm {
    private static final long serialVersionUID = 1L;
    private String usern;
    private String pass;

    public String getUsern() {
        return usern;
    }
    public void setUsern(String usern) {
        this.usern = usern;
    }
    public String getPass() {
        return pass;
    }
    public void setPass(String pass) {
        this.pass = pass;
    }
}
LoginAction
package pack;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

public class LoginAction extends Action {
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    // TODO Auto-generated method stub

    LoginActionForm frm=(LoginActionForm)form;
    if(frm.getUsern().equals(frm.getPass()) && !frm.getUsern().equals("") && !frm.getPass().equals("")){
    return mapping.findForward("success");
    }else{
        return mapping.findForward("failed");}

}
}