Of Stack

Comment page of written by js is not bad

  • 2020-03-30 01:02:42
  • OfStack 
 
<%@ page language="java" contentType="text/html; charset=utf-8" 
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" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" name="viewport"> 
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 
<title> Micro customer service </title> 
<style type="text/css"> 
body{ 
text-align: center; 
margin: 0; 
padding: 0; 
color: #500f60; 
background: url("../images/bj_4.jpg"); 
background-repeat:no-repeat; 
background-attachment: scroll; 
background-size:100% 100%; 
overflow-x: hidden; 
} 
li{ 
list-style-type: none; 
} 
a:link{ 
list-style-type: none; 
} 
img{ 
width: 100%; 
} 
#static{ 
margin: 0 auto; 
text-align: left; 
width: 90%; 
margin-top: 20px; 
} 
.aa{ 
padding-left: 16px; 
} 
#bott{ 
border: 3px #590303 solid; 
border-radius: 6px 6px 6px 6px; 
-moz-border-radius: 6px; 
width: 90%; 
margin-left: 5%; 
} 
.tex{ 
border-top: none; 
border-bottom: none; 
border-left: none; 
border-right: none; 
background: fixed; 
} 
</style> 
</head> 
<script type="text/javascript"> 
$(function() { 
var row = 5; 
//Add comment information dynamically
function loadCommentInfo(page) { 
$("#page").text(page); 
$.ajax({ 
type : "POST", 
url : "<%=basePath%>findClickCommentByPage.action", 
data: "page="+page+"&row="+row, 
success : function(data) { 
var list = data.list; 
var row = ""; 
$("#comments").empty(); 
for ( var i = 0; i < list.length; i++) { 
row = "<h3><span style="color: #000; font-size: 0.5em; padding-left: 70%;">"+list[i].time+"</span></h3>"+ 
"<h3 style="padding-left: 12px;">"+list[i].content+"</h3>"; 
if(list[i].repcontent!=null){ 
row+="<h3 style="padding-left: 12px; word-wrap: break-word; word-break: normal;"> reply :"+list[i].repcontent+"</h3>"; 
} 
"<hr size="5px;" color="#f0f">"; 
$(row).appendTo($("#comments")); 
} 
$("#pagetag").val(page); 
} 
}); 
}; 
function getTotalContent() { 
$.ajax({ 
type : "POST", 
url : "<%=basePath%>getTotalNum.action", 
success : function(data) { 
$("#count").text(data.total); 
if(parseInt(data.total)==0){ 
$("#page").text(0); 
} 
var pagenum = parseInt(data.total/row); 
$("#totalpage").text(parseInt(data.total%row==0?pagenum:pagenum+1)); 
}, 
}); 
} 
$("#submit").click(function(){ 
var content = $("#content").val(); 
if(content==""){ 
alert(" The content cannot be empty !"); 
return; 
} 
$.post("<%=basePath%>addClickComment.action","content="+content,function(data){ 
if(data.success == true) { 
alert(" Published successfully !"); 
$("#content").val(""); 
loadCommentInfo(parseInt($("#pagetag").val())); 
getTotalContent(); 
} 
}); 
}); 
$("#pre").click(function(){ 
var page = parseInt($("#pagetag").val()); 
if(page>1){ 
page--; 
loadCommentInfo(page); 
} 
}); 
$("#next").click(function(){ 
var page = parseInt($("#pagetag").val()); 
if(page<parseInt($("#totalpage").text())){ 
page++; 
loadCommentInfo(page); 
} 
}); 
window.onload = loadCommentInfo(1); 
window.onload = getTotalContent(); 
}); 
</script> 
<body> 
<input type="hidden" id="pagetag" value="1"> 
<div id="static"> 
<div style="text-align: left; z-index: 999"> 
<img src="../pic/top4.jpg"> 
<a href="<%=basePath%>jsp/index.jsp"><img src="../pic/fan_2.png" style="width: 10%; margin-top: -25px;"></a> 
</div> 
<button style="background: #520202; border-top: none;border: 3px #520202 solid; border-radius: 2px 2px 2px 2px;-moz-border-radius: 6px; color: #FFEA00;" id="pre"> The previous page </button> 
<button style="background: #520202; border-top: none;border: 3px #520202 solid; border-radius: 2px 2px 2px 2px;-moz-border-radius: 6px;float: right; color: #FFEA00;" id="next"> The next page </button> 
<p style="background: #520202; color: #FFEA00;"> The first <span id="page"></span>/<span id="totalpage"></span> page </p> 
<h1 class="aa"> comments (<span id="count"></span>)</h1> 
<hr size="5px;" color="#590303"> 
<div id="comments"> 
</div> 
<h2 class="aa"> comment </h2> 
<h3 class="aa"> Your comments: </h3> 
<div id="bott"> 
<textarea rows="7" class="tex" cols="100%" id="content"></textarea> 
</div> 
<button style="margin-left:80%; border-top: none;border: 3px #520202 solid; border-radius: 6px 6px 6px 6px;-moz-border-radius: 6px; color: #FFEA00; background: #520202;" id="submit"> published </button> 
</div> 
</body> 
</html>

Dao layer 
 
package dfml.daoImpl; 

import java.sql.SQLException; 
import java.util.List; 

import javax.annotation.Resource; 

import org.hibernate.Criteria; 
import org.hibernate.HibernateException; 
import org.hibernate.Query; 
import org.hibernate.Session; 
import org.hibernate.criterion.Order; 
import org.springframework.orm.hibernate3.HibernateCallback; 
import org.springframework.orm.hibernate3.HibernateTemplate; 
import org.springframework.stereotype.Component; 

import dfml.dao.ClickCommentDao; 
import dfml.pojo.ClickComment; 

@Component 
public class ClickCommentDaoImpl implements ClickCommentDao{ 

private HibernateTemplate hibernateTemplate; 

@Resource 
public void setHibernateTemplate(HibernateTemplate hibernateTemplate) { 
this.hibernateTemplate = hibernateTemplate; 
} 
//Add a comment message
@Override 
public boolean addClickComment(ClickComment clickComment) { 
boolean isSuccess = false; 
try { 
hibernateTemplate.save(clickComment); 
isSuccess = true; 
} catch (Exception e) { 
isSuccess = false; 
e.printStackTrace(); 
} 
return isSuccess; 
} 
//Paging to find comment information
@SuppressWarnings("unchecked") 
@Override 
public List<ClickComment> findClickCommentByPage(final int page, final int row) { 
List<ClickComment> list = this.hibernateTemplate 
.executeFind(new HibernateCallback<Object>() { 
@Override 
public Object doInHibernate(Session session) 
throws HibernateException, SQLException { 
Criteria c = session.createCriteria(ClickComment.class); 
c.setFirstResult((page - 1) * row); 
c.setMaxResults(row); 
c.addOrder(Order.desc("time")); 
return c.list(); 
} 
}); 
return list; 
} 
//Number of comments received
@SuppressWarnings({ "unchecked", "rawtypes" }) 
@Override 
public Long getClickCommentCount() { 
final String hql = "select count(*) from ClickComment"; 
Long result = null; 
result = (Long) hibernateTemplate.execute(new HibernateCallback() { 
public Object doInHibernate(Session arg0) 
throws HibernateException, SQLException { 
Query query = arg0.createQuery(hql); 
return query.uniqueResult(); 
} 
}); 
return result; 
} 
//Update comment information
@Override 
public boolean updateClickComment(ClickComment clickComment) { 
boolean isSuccess=false; 
try { 
hibernateTemplate.update(clickComment); 
isSuccess=true; 
} catch (Exception e) { 
e.printStackTrace(); 
isSuccess=false; 
} 
return isSuccess; 
} 
//Find comment information by id
@Override 
public ClickComment findClickCommentById(int id) { 
return (ClickComment) hibernateTemplate.find("from ClickComment where id = ?", 
id).get(0); 
} 
//Delete comment information
@Override 
public boolean deleteClickComment(ClickComment clickComment) { 
boolean isSuccess=false; 
try { 
hibernateTemplate.delete(clickComment); 
isSuccess=true; 
} catch (Exception e) { 
e.printStackTrace(); 
isSuccess=false; 
} 
return isSuccess; 
} 
//Query all comments
@SuppressWarnings("unchecked") 
@Override 
public List<ClickComment> findAllClickComment() { 
return hibernateTemplate.find("from ClickComment"); 
} 

}

The struts configuration 
 
<package name="clickComment" extends="json-default" namespace="/"> 
<action name="addClickComment" method="addClickComment" class="clickCommentAction"> 
<result name="add" type="json"> 
<param name="root">map</param> 
</result> 
</action> 
<action name="findClickCommentByPage" method="findClickCommentByPage" class="clickCommentAction"> 
<result name="findByPage" type="json"> 
<param name="root">map</param> 
</result> 
</action> 
<action name="getTotalNum" method="getTotalNum" class="clickCommentAction"> 
<result name="total" type="json"> 
<param name="root">map</param> 
</result> 
</action> 
<action name="updateClickComment" method="updateClickComment" class="clickCommentAction"> 
<result name="update" type="json"> 
<param name="root">map</param> 
</result> 
</action> 
<action name="findAllClickComment" method="findAllClickComment" class="clickCommentAction"> 
<result name="list" type="json"> 
<param name="root">map</param> 
</result> 
</action> 
<action name="deleteClickComment" method="deleteClickComment" class="clickCommentAction"> 
<result name="delete" type="json"> 
<param name="root">map</param> 
</result> 
</action>

The action 
 
package dfml.action; 

import java.sql.Date; 
import java.text.SimpleDateFormat; 
import java.util.HashMap; 
import java.util.List; 
import java.util.Map; 

import javax.annotation.Resource; 

import org.springframework.context.annotation.Scope; 
import org.springframework.stereotype.Component; 

import com.opensymphony.xwork2.ActionSupport; 

import dfml.dao.ClickCommentDao; 
import dfml.pojo.Activity; 
import dfml.pojo.ClickComment; 

@Component("clickCommentAction") 
@Scope("prototype") 
public class ClickCommentAction extends ActionSupport{ 

private static final long serialVersionUID = 1L; 

private ClickCommentDao clickCommentDao; 
private Map<String, Object> map; 
private String content;//Comment on the content
private String repcontent;//Reply to comment
private int page; 
private int row; 
private int rows; 
private int id; 
public void setId(int id) { 
this.id = id; 
} 
public Map<String, Object> getMap() { 
return map; 
} 
@Resource 
public void setClickCommentDao(ClickCommentDao clickCommentDao) { 
this.clickCommentDao = clickCommentDao; 
} 
public void setContent(String content) { 
this.content = content; 
} 
public void setRepcontent(String repcontent) { 
this.repcontent = repcontent; 
} 
public void setPage(int page) { 
this.page = page; 
} 
public void setRow(int row) { 
this.row = row; 
} 
public void setRows(int rows) { 
this.rows = rows; 
} 
//Add comments for WeChat users
public String addClickComment() { 
boolean isSuccess = false; 
map = new HashMap<String, Object>(); 
ClickComment clickComment = new ClickComment(); 
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 
clickComment.setTime(format.format(new Date(System.currentTimeMillis()))); 
clickComment.setContent(content); 
try { 
isSuccess = clickCommentDao.addClickComment(clickComment); 
} catch (Exception e) { 
isSuccess = false; 
e.printStackTrace(); 
} 
map.put("success", isSuccess); 
return "add"; 
} 
//Paging to find comment users WeChat users
public String findClickCommentByPage() { 
map = new HashMap<String, Object>(); 
map.put("list", clickCommentDao.findClickCommentByPage(page, row)); 
return "findByPage"; 
} 
//Query comment number for WeChat users
public String getTotalNum(){ 
map = new HashMap<String, Object>(); 
map.put("total", clickCommentDao.getClickCommentCount()); 
return "total"; 
} 
//Reply comments are used for background management
public String updateClickComment(){ 
boolean isSuccess=false; 
map=new HashMap<String, Object>(); 
ClickComment clickComment =clickCommentDao.findClickCommentById(id); 
if(clickComment!=null){ 
clickComment.setRepcontent(repcontent); 
isSuccess=clickCommentDao.updateClickComment(clickComment); 
} 
map.put("success", isSuccess); 
return "update"; 
} 
//Query all comments for background administration
public String findAllClickComment(){ 
map=new HashMap<String, Object>(); 
List<ClickComment> lists=clickCommentDao.findClickCommentByPage(page, rows); 
List<ClickComment> listss=clickCommentDao.findAllClickComment(); 
map.put("rows", lists); 
map.put("total", listss.size()); 
map.put("list", listss); 
return "list"; 
} 
//Delete comments for background administration
public String deleteClickComment(){ 
boolean isSuccess=false; 
map=new HashMap<String, Object>(); 
ClickComment clickComment =clickCommentDao.findClickCommentById(id); 
if(clickComment!=null){ 
isSuccess=clickCommentDao.deleteClickComment(clickComment); 
} 
map.put("success", isSuccess); 
return "delete"; 
} 


}

pojo 
 
package dfml.pojo; 

import java.io.Serializable; 
import javax.persistence.Entity; 
import javax.persistence.GeneratedValue; 
import javax.persistence.Id; 

//Comments on the table
@Entity 
public class ClickComment implements Serializable{ 


private static final long serialVersionUID = 1L; 
private Integer id; 
private String time;//Comment on time
private String content;//Comment on the content
private String name;//critics
private String repcontent;//Reply to comment



@Id 
@GeneratedValue 
public Integer getId() { 
return id; 
} 

public void setId(Integer id) { 
this.id = id; 
} 
public String getRepcontent() { 
return repcontent; 
} 
public void setRepcontent(String repcontent) { 
this.repcontent = repcontent; 
} 
public String getTime() { 
return time; 
} 
public void setTime(String time) { 
this.time = time; 
} 
public String getContent() { 
return content; 
} 

public void setContent(String content) { 
this.content = content; 
} 

public String getName() { 
return name; 
} 

public void setName(String name) { 
this.name = name; 
} 
}
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