JavaWeb_(SSH论坛)_六、点赞模块
基于SSH框架的小型论坛项目
一、项目入门 传送门
二、框架整合 传送门
三、用户模块 传送门
四、页面显示 传送门
五、帖子模块 传送门
六、点赞模块 传送门
七、辅助模块 传送门
联合主键
创建praise表
创建Praise.java和PrimaryKey.java并在Praise.hbm.xml中配置联合组件
package com.Gary.domain;
import com.Gary.vo.PrimaryKey;
public class Praise {
private PrimaryKey primaryKey;
public PrimaryKey getPrimaryKey() {
return primaryKey;
}
public void setPrimaryKey(PrimaryKey primaryKey) {
this.primaryKey = primaryKey;
}
}
Praise.java
package com.Gary.vo; import java.io.Serializable; import com.Gary.domain.Answer;
import com.Gary.domain.User; public class PrimaryKey implements Serializable{
private User user;
private Answer answer;
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public Answer getAnswer() {
return answer;
}
public void setAnswer(Answer answer) {
this.answer = answer;
} }
PrimaryKey.java
<!-- 类名-对应表名字 -->
<class name="Praise" table="praise">
<!-- 联合主键的名字 联合主键的类 -->
<composite-id name="primaryKey" class="com.Gary.vo.PrimaryKey">
<!-- primarykey中的属性 对应数据库中的列 属性对应的类 -->
<key-many-to-one name="user" column="userid" class="User"></key-many-to-one>
<key-many-to-one name="answer" column="answerid" class="Answer"></key-many-to-one>
</composite-id>
</class>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> <hibernate-mapping package="com.Gary.domain"> <!-- 类名-对应表名字 -->
<class name="Praise" table="praise">
<!-- 联合主键的名字 联合主键的类 -->
<composite-id name="primaryKey" class="com.Gary.vo.PrimaryKey">
<!-- primarykey中的属性 对应数据库中的列 属性对应的类 -->
<key-many-to-one name="user" column="userid" class="User"></key-many-to-one>
<key-many-to-one name="answer" column="answerid" class="Answer"></key-many-to-one>
</composite-id>
</class> </hibernate-mapping>
Praise.hbm.xml
分析点赞功
detail.jsp
<a href="${pageContext.request.contextPath }/PraiseAction_addPraise?answerid=<s:property value="#answer.id" />&pasteid=<s:property value="#paste.id" />">
<span class="jieda-zan" type="zan">
<i class="iconfont icon-zan"></i>
<em>
<s:property value="#answer.agree" />
</em>
</span>
</a>
Web层
//添加赞
public String addPraise() throws Exception{ //肯定可以获得（用户未登录不能点赞，只有登录后才可以点赞）
User user = (User) ActionContext.getContext().getSession().get("user"); if(user == null)
{
ActionContext.getContext().put("error", "未登录不允许点赞！！");
return "error";
}
//根据answerid查找Answer对象
Answer answer = answerService.findAnswerByIdReturnAnswer(answerid);
//申明联合主键
PrimaryKey primaryKey = new PrimaryKey();
//放置对象
primaryKey.setAnswer(answer);
primaryKey.setUser(user);
//创建赞的类
Praise praise = new Praise();
//将联合主键放入类的对象中
praise.setPrimaryKey(primaryKey); praiseService.addPraise(praise);
ActionContext.getContext().put("pasteid", pasteid);
return "toDetail";
}
package com.Gary.web; import com.Gary.domain.Answer;
import com.Gary.domain.Praise;
import com.Gary.domain.User;
import com.Gary.service.AnswerService;
import com.Gary.service.PraiseService;
import com.Gary.vo.PrimaryKey;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport; public class PraiseAction extends ActionSupport{ private String answerid;
private String pasteid;
private AnswerService answerService;
private PraiseService praiseService; public String getPasteid() {
return pasteid;
} public void setPasteid(String pasteid) {
this.pasteid = pasteid;
} //添加赞
public String addPraise() throws Exception{ //肯定可以获得（用户未登录不能点赞，只有登录后才可以点赞）
User user = (User) ActionContext.getContext().getSession().get("user"); if(user == null)
{
ActionContext.getContext().put("error", "未登录不允许点赞！！");
return "error";
}
//根据answerid查找Answer对象
Answer answer = answerService.findAnswerByIdReturnAnswer(answerid);
//申明联合主键
PrimaryKey primaryKey = new PrimaryKey();
//放置对象
primaryKey.setAnswer(answer);
primaryKey.setUser(user);
//创建赞的类
Praise praise = new Praise();
//将联合主键放入类的对象中
praise.setPrimaryKey(primaryKey); praiseService.addPraise(praise);
ActionContext.getContext().put("pasteid", pasteid);
return "toDetail";
} public AnswerService getAnswerService() {
return answerService;
} public void setAnswerService(AnswerService answerService) {
this.answerService = answerService;
} public PraiseService getPraiseService() {
return praiseService;
} public void setPraiseService(PraiseService praiseService) {
this.praiseService = praiseService;
} public String getAnswerid() {
return answerid;
} public void setAnswerid(String answerid) {
this.answerid = answerid;
} }
PraiseAction.java
service层
public void addPraise(Praise praise) {
praiseDao.addPraise(praise);
}
package com.Gary.service; import com.Gary.dao.PraiseDao;
import com.Gary.domain.Praise; public class PraiseService { private PraiseDao praiseDao; public void addPraise(Praise praise) {
praiseDao.addPraise(praise); } public PraiseDao getPraiseDao() {
return praiseDao;
} public void setPraiseDao(PraiseDao praiseDao) {
this.praiseDao = praiseDao;
} }
PraiseService.java
Dao层
//添加赞
public void addPraise(Praise praise) {
Session session = getHibernateTemplate().getSessionFactory().getCurrentSession();
session.save(praise);
}
package com.Gary.dao; import org.hibernate.Session;
import org.hibernate.query.NativeQuery;
import org.springframework.orm.hibernate5.support.HibernateDaoSupport; import com.Gary.domain.Praise; public class PraiseDao extends HibernateDaoSupport{ //添加赞
public void addPraise(Praise praise) {
Session session = getHibernateTemplate().getSessionFactory().getCurrentSession();
session.save(praise);
} }
PraiseDao.java
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>问题详情</title>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta name="keywords" content="fly,layui,前端社区">
<meta name="description" content="">
<link rel="stylesheet" href="res/layui/css/layui.css">
<link rel="stylesheet" href="res/css/global.css">
<script src="res/layui/layui.js"></script>
<script src="js/jquery.js"></script>
<style type="text/css" rel="stylesheet">
form {
margin: 0;
} .editor {
margin-top: 5px;
margin-bottom: 5px;
}
</style> </head>
<body style="margin: -2px">
<iframe src="head.jsp" scrolling="no" width="100%" height="110px"></iframe>
<div class="main layui-clear">
<div class="wrap">
<div class="content detail">
<div class="fly-panel detail-box"> <h1>
<s:property value="#paste.title" />
</h1>
<div class="fly-tip fly-detail-hint" data-id="">
<span class="fly-tip-stick">置顶帖</span> <span class="jie-admin"> <a href="">点击置顶</a>
</span> <span class="layui-btn layui-btn-mini jie-admin"> <a href="">取消置顶</a>
</span> <span class="jie-admin" type="del" style="margin-left: 20px;"> <a>删除该帖</a>
</span> </span>
<div class="fly-list-hint">
<i class="iconfont" title="回答"></i>
<s:property value="#paste.ansnum" />
</div>
</div>
<div class="detail-about">
<a class="jie-user" href=""> <img src="${pageContext.request.contextPath }/<s:property value="#paste.user.image"/>" alt="头像"> <cite> <s:property value="#paste.user.username" /> <em> <s:property value="#paste.createtime" /> 发布
</em>
</cite>
</a>
<div class="detail-hits" data-id="{{rows.id}}">
<span class="layui-btn layui-btn-mini jie-admin"> <a href="#">已完帖，无法编辑</a>
</span> <span class="layui-btn layui-btn-mini jie-admin" type="collect" data-type="add"> <a id="collectPost">收藏</a>
</span> <span class="layui-btn layui-btn-mini jie-admin layui-btn-danger" type="collect" data-type="add"> <a>取消收藏</a>
</span> </div>
</div>
<div class="detail-body photos" style="margin-bottom: 20px;">
<p>
<s:property value="#paste.content" />
</p>
</div>
</div> <div class="fly-panel detail-box" style="padding-top: 0;">
<a name="comment"></a>
<ul class="jieda photos" id="jieda">
<!-- <li data-id="12" class="jieda-daan"><a name="item-121212121212"></a>
<div class="detail-about detail-about-reply">
<a class="jie-user" href=""> <img src="res/images/uer.jpg" alt=""> <cite> <i>纸飞机</i> <em>(楼主)</em>
<em style="color:#5FB878">(管理员)</em>
</cite>
</a>
<div class="detail-hits">
<span>3分钟前</span>
</div>
<i class="iconfont icon-caina" title="最佳答案"></i>
</div>
<div class="detail-body jieda-body">
<p>么么哒</p>
</div>
<div class="jieda-reply">
<span class="jieda-zan zanok" type="zan"><i class="iconfont icon-zan"></i><em>12</em> </span>
<!-- <div class="jieda-admin">
<span type="del">删除</span>
<span class="jieda-accept" type="accept">采纳</span>
</div>
</div></li> --> <s:iterator value="#answerList" var="answer">
<li data-id="13"><a name="item-121212121212"></a>
<div class="detail-about detail-about-reply">
<a class="jie-user" href=""> <img src="${pageContext.request.contextPath }/<s:property value="#answer.user.image"/>" alt=""> <cite> <i><s:property value="#answer.user.username" /></i> <em style="color: #FF9E3F">活雷锋</em>
</cite>
</a>
<div class="detail-hits">
<span> <s:property value="#answer.anstime" />
</span>
</div>
<s:if test="#answer.id==#paste.answerid">
<i class="iconfont icon-caina" title="最佳答案"></i>
</s:if>
</div>
<div class="detail-body jieda-body">
<p>
<s:property value="#answer.content" />
</p>
</div>
<div class="jieda-reply">
<a href="${pageContext.request.contextPath }/PraiseAction_addPraise?answerid=<s:property value="#answer.id" />&pasteid=<s:property value="#paste.id" />">
<span class="jieda-zan" type="zan">
<i class="iconfont icon-zan"></i>
<em>
<s:property value="#answer.agree" />
</em>
</span>
</a>
<div class="jieda-admin">
<s:if test="#session.user.username==#answer.user.username && #paste.answerid!=#answer.id">
<span type="del">
<a href="${pageContext.request.contextPath }/AnswerAction_deleteAnswer?answerid=<s:property value="#answer.id"/>&pasteid=<s:property value="#paste.id"/>" class="layui-btn layui-btn-danger layui-btn-small">删除</a>
</span>
</s:if>
<s:if test="#session.user.username==#paste.user.username && #paste.solve==0">
<span class="jieda-accept" type="accept">
<a href="${pageContext.request.contextPath }/PasteAction_solvePaste?answerid=<s:property value="#answer.id"/>&pasteid=<s:property value="#paste.id"/>" class="layui-btn layui-btn-small">采纳</a>
</span>
</s:if>
</div>
</div></li>
</s:iterator>
<s:if test="#answerList.size()==0">
<li class="fly-none">没有任何回答</li>
</s:if>
</ul>
<div class="layui-form layui-form-pane">
<!-- <form action="${pageContext.request.contextPath }/AnswerAction_addAnswer">
<input type="hidden" name="pasteid" value="<s:property value="#paste.id"/>">
<div class="layui-form-item layui-form-text">
<div class="layui-input-block">
<textarea id="L_content" name="content" required lay-verify="required" placeholder="我要回答" class="layui-textarea fly-editor" style="height: 150px;"></textarea>
</div>
</div>
<div class="layui-form-item">
<button class="layui-btn" lay-filter="*" lay-submit>提交回答</button>
</div>
</form> -->
<form action="${pageContext.request.contextPath}/AnswerAction_addAnswer">
<input type="hidden" name="pasteid" value="<s:property value="#paste.id"/>"> <label for="L_title" class="layui-form-label" style="width: 690px; height: 40px;">
<div style="margin-left: -580px">回答问题：</div>
</label>
<div class="layui-form-item layui-form-text">
<div class="layui-input-block">
<div class="editor">
<textarea id="content" name="content" style="width: 690px; height: 300px; visibility: hidden;"></textarea>
</div>
</div> </div> <div class="layui-form-item">
<button class="layui-btn" lay-filter="*" lay-submit>立即发布</button>
</div>
</form>
</div>
</div>
</div>
</div> <div class="edge">
<dl class="fly-panel fly-list-one">
<dt class="fly-panel-title">最近热帖</dt>
<s:iterator value="#glanceoverPageBean.list" var="paste">
<dd> <a href="${pageContext.request.contextPath }/PasteAction_getDetail?pasteid=<s:property value="#paste.id"/>"> <s:property value="#paste.title" />
</a> <span> <i class="iconfont"></i> <s:property value="#paste.glanceover" />
</span>
</dd>
</s:iterator>
</dl> <dl class="fly-panel fly-list-one">
<dt class="fly-panel-title">近期热议</dt>
<s:iterator value="#ansnumPageBean.list" var="paste">
<dd>
<a href="${pageContext.request.contextPath }/PasteAction_getDetail?pasteid=<s:property value="#paste.id"/>"> <s:property value="#paste.title" />
</a> <span> <i class="iconfont"></i> <s:property value="#paste.ansnum" />
</span>
</dd>
</s:iterator>
</dl>
</div>
</div> <%-- <script type="text/javascript" charset="utf-8" src="res/js/kindeditor.js"></script>
<script type="text/javascript">
KE.show({
id : 'L_content',
resizeMode : 1,
items : [ 'fontname', 'fontsize', 'textcolor', 'bgcolor', 'bold',
'italic', 'underline', 'removeformat', 'justifyleft',
'justifycenter', 'justifyright', 'insertorderedlist',
'insertunorderedlist', 'emoticons', 'image', 'link' ]
});
</script> --%>
<script type="text/javascript" charset="utf-8" src="js/kindeditor.js"></script>
<script type="text/javascript">
KE.show({
id : 'content',
resizeMode : 1,
cssPath : './index.css',
items : [ 'fontname', 'fontsize', 'textcolor', 'bgcolor', 'bold',
'italic', 'underline', 'removeformat', 'justifyleft',
'justifycenter', 'justifyright', 'insertorderedlist',
'insertunorderedlist', 'emoticons', 'image', 'link' ]
});
</script>
<script>
layui.cache.page = '';
layui.cache.user = {
username : '游客',
uid : -1,
avatar : '../res/images/avatar/00.jpg',
experience : 83,
sex : '男'
};
layui.config({
version : "2.0.0",
base : '../res/mods/'
}).extend({
fly : 'index'
}).use('fly');
</script>
</body>
</html>
detail.jsp
package com.Gary.web; import com.Gary.domain.Answer;
import com.Gary.domain.Praise;
import com.Gary.domain.User;
import com.Gary.service.AnswerService;
import com.Gary.service.PraiseService;
import com.Gary.vo.PrimaryKey;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport; public class PraiseAction extends ActionSupport{ private String answerid;
private String pasteid;
private AnswerService answerService;
private PraiseService praiseService; public String getPasteid() {
return pasteid;
} public void setPasteid(String pasteid) {
this.pasteid = pasteid;
} //添加赞
public String addPraise() throws Exception{ //肯定可以获得（用户未登录不能点赞，只有登录后才可以点赞）
User user = (User) ActionContext.getContext().getSession().get("user"); if(user == null)
{
ActionContext.getContext().put("error", "未登录不允许点赞！！");
return "error";
}
//根据answerid查找Answer对象
Answer answer = answerService.findAnswerByIdReturnAnswer(answerid);
//申明联合主键
PrimaryKey primaryKey = new PrimaryKey();
//放置对象
primaryKey.setAnswer(answer);
primaryKey.setUser(user);
//创建赞的类
Praise praise = new Praise();
//将联合主键放入类的对象中
praise.setPrimaryKey(primaryKey); praiseService.addPraise(praise); answer.setAgree(answer.getAgree()+1);
ActionContext.getContext().put("pasteid", pasteid);
return "toDetail";
} public AnswerService getAnswerService() {
return answerService;
} public void setAnswerService(AnswerService answerService) {
this.answerService = answerService;
} public PraiseService getPraiseService() {
return praiseService;
} public void setPraiseService(PraiseService praiseService) {
this.praiseService = praiseService;
} public String getAnswerid() {
return answerid;
} public void setAnswerid(String answerid) {
this.answerid = answerid;
} }
PraiseAction.java
package com.Gary.service; import com.Gary.dao.PraiseDao;
import com.Gary.domain.Praise; public class PraiseService { private PraiseDao praiseDao; public void addPraise(Praise praise) {
praiseDao.addPraise(praise); } public PraiseDao getPraiseDao() {
return praiseDao;
} public void setPraiseDao(PraiseDao praiseDao) {
this.praiseDao = praiseDao;
} }
PraiseService.java
package com.Gary.dao; import org.hibernate.Session;
import org.hibernate.query.NativeQuery;
import org.springframework.orm.hibernate5.support.HibernateDaoSupport; import com.Gary.domain.Praise; public class PraiseDao extends HibernateDaoSupport{ //添加赞
public void addPraise(Praise praise) {
Session session = getHibernateTemplate().getSessionFactory().getCurrentSession();
session.save(praise);
} }
PraiseDao.java
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
"http://struts.apache.org/dtds/struts-2.5.dtd"> <struts> <!--开启动态方法调用 -->
<constant name="struts.devMode" value="true"></constant>
<constant name="struts.enable.DynamicMethodInvocation" value="true"></constant> <!-- 告诉struts不用自己创建Action,Spring来帮你创建 -->
<constant name="struts.objectFactory" value="spring"></constant>
<package name="Gary_SSHForum" namespace="/" extends="struts-default">
<!-- 允许全部方法 -->
<global-allowed-methods>regex:.*</global-allowed-methods>
<action name="UserAction_*" class="com.Gary.web.UserAction" method="{1}">
<result name="toLogin" type="redirect">/login.jsp</result>
<result name="login">/login.jsp</result>
<result name="toIndex" type="redirect">/default.jsp</result>
<result name="error">/login.jsp</result>
<result name="toRegisterSuccess" type="redirect">/registerSuccess.jsp</result>
</action> <action name="PasteAction_*" class="com.Gary.web.PasteAction" method="{1}">
<!-- 从定向到jsp -->
<result name="toIndex" type="redirect">/default.jsp</result>
<result name="error">/login.jsp</result>
<!-- 转发到jsp -->
<result name="detail">/detail.jsp</result>
<!-- 重定向到Action -->
<result name="toDetail" type="redirectAction">
<param name="actionName"> PasteAction_getDetail </param>
<!-- struts不认识pasteid则会封装到重定向的action中 -->
<param name="pasteid">${pasteid}</param>
</result>
</action> <action name="GetDataAction_*" class="com.Gary.web.GetDataAction" method="{1}">
<result name="index" >/index.jsp</result>
</action>
<action name="AnswerAction_*" class="com.Gary.web.AnswerAction" method="{1}">
<result name="error">/login.jsp</result>
<!-- 重定向到Action -->
<result name="toDetail" type="redirectAction">
<param name="actionName">PasteAction_getDetail</param>
<!-- struts不认识pasteid则会封装到重定向的action中 -->
<param name="pasteid">${pasteid}</param>
</result>
</action> <action name="PraiseAction_*" class="com.Gary.web.PraiseAction" method="{1}">
<result name="error">/login.jsp</result>
<result name="toDetail" type="redirectAction">
<param name="actionName">PasteAction_getDetail</param>
<param name="pasteid">${pasteid}</param>
</result>
</action> </package> </struts>
struct.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 配置数据源 -->
<bean name="dataSource"
class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="jdbcUrl" value="jdbc:mysqL:///garyssh_forum"></property>
<property name="driverClass" value="com.mysql.jdbc.Driver"></property>
<property name="user" value="root"></property>
<property name="password" value="123456"></property>
</bean> <!-- 配置sessionFactory -->
<bean name="sessionFactory"
class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.show_sqp">true</prop>
<prop key="hibernate.format_sql">true</prop>
</props>
</property> <property name="mappingDirectoryLocations"
value="classpath:com/Gary/domain"></property> </bean> <!-- 配置事务的核心管理器 -->
<bean name="transactionManager"
class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean> <!-- 通知 -->
<tx:advice id="advice"
transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="*" />
</tx:attributes>
</tx:advice> <!-- 织入 -->
<aop:config>
<!-- 切入点 -->
<aop:pointcut
expression="execution(* com.Gary.service.*.*(..))" id="pc" />
<!-- 配置切面 切入点+通知 -->
<aop:advisor advice-ref="advice" pointcut-ref="pc" />
</aop:config> <!-- 配置Action -->
<bean name="userAction" class="com.Gary.web.UserAction" scope="prototype">
<property name="userService" ref="userService"></property>
</bean>
<bean name="pasteAction" class="com.Gary.web.PasteAction" scope="prototype">
<property name="pasteService" ref="pasteService"></property>
<property name="answerService" ref="answerService"></property>
</bean>
<bean name="getDataAction" class="com.Gary.web.GetDataAction" scope="prototype">
<property name="pasteService" ref="pasteService"></property>
<property name="userService" ref="userService"></property>
</bean>
<bean name="answerAction" class="com.Gary.web.AnswerAction" scope="prototype">
<property name="answerService" ref="answerService"></property>
<property name="pasteService" ref="pasteService"></property>
</bean>
<bean name="praiseAction" class="com.Gary.web.PraiseAction" scope="prototype">
<property name="answerService" ref="answerService"></property>
<property name="praiseService" ref="praiseService"></property>
</bean> <!-- 配置Service -->
<bean name="userService" class="com.Gary.service.UserService">
<property name="userDao" ref="userDao"></property>
</bean>
<bean name="pasteService" class="com.Gary.service.PasteService">
<property name="pasteDao" ref="pasteDao"></property>
<property name="userDao" ref="userDao"></property>
<property name="answerDao" ref="answerDao"></property>
</bean>
<bean name="answerService" class="com.Gary.service.AnswerService">
<property name="answerDao" ref="answerDao"></property>
<property name="pasteDao" ref="pasteDao"></property>
</bean>
<bean name="praiseService" class="com.Gary.service.PraiseService">
<property name="praiseDao" ref="praiseDao"></property>
</bean> <!-- 配置Dao -->
<bean name="userDao" class="com.Gary.dao.UserDao">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<bean name="pasteDao" class="com.Gary.dao.PasteDao">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<bean name="answerDao" class="com.Gary.dao.AnswerDao">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<bean name="praiseDao" class="com.Gary.dao.PraiseDao">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean> </beans>
application.xml
前端分析点赞
用户点赞后，后端处理逻辑及修改数据库的值
前端点赞
<div class="jieda-reply">
<!-- 登录用户点赞了哪些回复 -->
<s:if test="#answer.loginUserIsAgree==0">
<a href="${pageContext.request.contextPath }/PraiseAction_addPraise?answerid=<s:property value="#answer.id" />&pasteid=<s:property value="#paste.id" />">
<span class="jieda-zan" type="zan">
<i class="iconfont icon-zan"></i>
<em>
<s:property value="#answer.agree" />
</em>
</span>
</a>
</s:if>
<s:else>
<span class="jieda-zan zanok" type="zan">
<i class="iconfont icon-zan"></i>
<em>
<s:property value="#answer.agree" />
</em>
</span>
</s:else>
Web层获得用户点赞后查看帖子详细信息，当用户未登陆时，需用户跳转到登陆界面登陆，当用户成功登陆，则点赞数+1
//查看帖子详细信息
public String getDetail() throws Exception{ User user = (User)ActionContext.getContext().getSession().get("user"); //得到最近热帖
PageBean glanceoverPageBean = pasteService.getGlanceoverPageBean(null);
ActionContext.getContext().put("glanceoverPageBean", glanceoverPageBean); //得到最近热议
PageBean ansnumPageBean = pasteService.getAnsnumPageBean(null);
ActionContext.getContext().put("ansnumPageBean", ansnumPageBean); //获得帖子
Paste paste = pasteService.findPasteByIdReturnPaste(pasteid);
ActionContext.getContext().put("paste", paste); //获得该帖子的所有回复
List<Answer> answerList = answerService.findAllAnswerByPasteid(pasteid);
for(Answer answer:answerList)
{
if(user != null)
{
//判断用户是否点赞了该回复
boolean success = praiseService.findPraiseByIdReturnPraise(user.getId(),answer.getId());
if(success)
{
//如果查询到用户点赞了该回复，将loginUserIsAgree设置为1
answer.setLoginUserIsAgree(1);
}
else
{
//如果没有查询到用户点赞了该回复，将loginUserIsAgree设置为0
answer.setLoginUserIsAgree(0);
}
}
else
{
//如果没有登陆，将loginUserIsAgree设置为0
answer.setLoginUserIsAgree(0);
}
}
ActionContext.getContext().put("answerList", answerList); return "detail";
}
Dao层进行数据库的修改
public void addAnswerAgree(String answerid) {
Answer answer = answerDao.findAnswerById(answerid);
answer.setAgree(answer.getAgree() + 1);
//第二种方式sql
//update answer set agree = agree +1 where answer id = ?
}
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>问题详情</title>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta name="keywords" content="fly,layui,前端社区">
<meta name="description" content="">
<link rel="stylesheet" href="res/layui/css/layui.css">
<link rel="stylesheet" href="res/css/global.css">
<script src="res/layui/layui.js"></script>
<script src="js/jquery.js"></script>
<style type="text/css" rel="stylesheet">
form {
margin: 0;
} .editor {
margin-top: 5px;
margin-bottom: 5px;
}
</style> </head>
<body style="margin: -2px">
<iframe src="head.jsp" scrolling="no" width="100%" height="110px"></iframe>
<div class="main layui-clear">
<div class="wrap">
<div class="content detail">
<div class="fly-panel detail-box"> <h1>
<s:property value="#paste.title" />
</h1>
<div class="fly-tip fly-detail-hint" data-id="">
<span class="fly-tip-stick">置顶帖</span> <span class="jie-admin"> <a href="">点击置顶</a>
</span> <span class="layui-btn layui-btn-mini jie-admin"> <a href="">取消置顶</a>
</span> <span class="jie-admin" type="del" style="margin-left: 20px;"> <a>删除该帖</a>
</span> </span>
<div class="fly-list-hint">
<i class="iconfont" title="回答"></i>
<s:property value="#paste.ansnum" />
</div>
</div>
<div class="detail-about">
<a class="jie-user" href=""> <img src="${pageContext.request.contextPath }/<s:property value="#paste.user.image"/>" alt="头像"> <cite> <s:property value="#paste.user.username" /> <em> <s:property value="#paste.createtime" /> 发布
</em>
</cite>
</a>
<div class="detail-hits" data-id="{{rows.id}}">
<span class="layui-btn layui-btn-mini jie-admin"> <a href="#">已完帖，无法编辑</a>
</span> <span class="layui-btn layui-btn-mini jie-admin" type="collect" data-type="add"> <a id="collectPost">收藏</a>
</span> <span class="layui-btn layui-btn-mini jie-admin layui-btn-danger" type="collect" data-type="add"> <a>取消收藏</a>
</span> </div>
</div>
<div class="detail-body photos" style="margin-bottom: 20px;">
<p>
<s:property value="#paste.content" />
</p>
</div>
</div> <div class="fly-panel detail-box" style="padding-top: 0;">
<a name="comment"></a>
<ul class="jieda photos" id="jieda">
<!-- <li data-id="12" class="jieda-daan"><a name="item-121212121212"></a>
<div class="detail-about detail-about-reply">
<a class="jie-user" href=""> <img src="res/images/uer.jpg" alt=""> <cite> <i>纸飞机</i> <em>(楼主)</em>
<em style="color:#5FB878">(管理员)</em>
</cite>
</a>
<div class="detail-hits">
<span>3分钟前</span>
</div>
<i class="iconfont icon-caina" title="最佳答案"></i>
</div>
<div class="detail-body jieda-body">
<p>么么哒</p>
</div>
<div class="jieda-reply">
<span class="jieda-zan zanok" type="zan"><i class="iconfont icon-zan"></i><em>12</em> </span>
<!-- <div class="jieda-admin">
<span type="del">删除</span>
<span class="jieda-accept" type="accept">采纳</span>
</div>
</div></li> --> <s:iterator value="#answerList" var="answer">
<li data-id="13"><a name="item-121212121212"></a>
<div class="detail-about detail-about-reply">
<a class="jie-user" href=""> <img src="${pageContext.request.contextPath }/<s:property value="#answer.user.image"/>" alt=""> <cite> <i><s:property value="#answer.user.username" /></i> <em style="color: #FF9E3F">活雷锋</em>
</cite>
</a>
<div class="detail-hits">
<span> <s:property value="#answer.anstime" />
</span>
</div>
<s:if test="#answer.id==#paste.answerid">
<i class="iconfont icon-caina" title="最佳答案"></i>
</s:if>
</div>
<div class="detail-body jieda-body">
<p>
<s:property value="#answer.content" />
</p>
</div>
<div class="jieda-reply"> <!-- 登录用户点赞了哪些回复 -->
<s:if test="#answer.loginUserIsAgree==0">
<a href="${pageContext.request.contextPath }/PraiseAction_addPraise?answerid=<s:property value="#answer.id" />&pasteid=<s:property value="#paste.id" />">
<span class="jieda-zan" type="zan">
<i class="iconfont icon-zan"></i>
<em>
<s:property value="#answer.agree" />
</em>
</span>
</a>
</s:if>
<s:else> <span class="jieda-zan zanok" type="zan"> <i class="iconfont icon-zan"></i>
<em>
<s:property value="#answer.agree" />
</em>
</span> </s:else> <div class="jieda-admin">
<s:if test="#session.user.username==#answer.user.username && #paste.answerid!=#answer.id">
<span type="del">
<a href="${pageContext.request.contextPath }/AnswerAction_deleteAnswer?answerid=<s:property value="#answer.id"/>&pasteid=<s:property value="#paste.id"/>" class="layui-btn layui-btn-danger layui-btn-small">删除</a>
</span>
</s:if>
<s:if test="#session.user.username==#paste.user.username && #paste.solve==0">
<span class="jieda-accept" type="accept">
<a href="${pageContext.request.contextPath }/PasteAction_solvePaste?answerid=<s:property value="#answer.id"/>&pasteid=<s:property value="#paste.id"/>" class="layui-btn layui-btn-small">采纳</a>
</span>
</s:if>
</div>
</div></li>
</s:iterator>
<s:if test="#answerList.size()==0">
<li class="fly-none">没有任何回答</li>
</s:if>
</ul>
<div class="layui-form layui-form-pane">
<!-- <form action="${pageContext.request.contextPath }/AnswerAction_addAnswer">
<input type="hidden" name="pasteid" value="<s:property value="#paste.id"/>">
<div class="layui-form-item layui-form-text">
<div class="layui-input-block">
<textarea id="L_content" name="content" required lay-verify="required" placeholder="我要回答" class="layui-textarea fly-editor" style="height: 150px;"></textarea>
</div>
</div>
<div class="layui-form-item">
<button class="layui-btn" lay-filter="*" lay-submit>提交回答</button>
</div>
</form> -->
<form action="${pageContext.request.contextPath}/AnswerAction_addAnswer">
<input type="hidden" name="pasteid" value="<s:property value="#paste.id"/>"> <label for="L_title" class="layui-form-label" style="width: 690px; height: 40px;">
<div style="margin-left: -580px">回答问题：</div>
</label>
<div class="layui-form-item layui-form-text">
<div class="layui-input-block">
<div class="editor">
<textarea id="content" name="content" style="width: 690px; height: 300px; visibility: hidden;"></textarea>
</div>
</div> </div> <div class="layui-form-item">
<button class="layui-btn" lay-filter="*" lay-submit>立即发布</button>
</div>
</form>
</div>
</div>
</div>
</div> <div class="edge">
<dl class="fly-panel fly-list-one">
<dt class="fly-panel-title">最近热帖</dt>
<s:iterator value="#glanceoverPageBean.list" var="paste">
<dd> <a href="${pageContext.request.contextPath }/PasteAction_getDetail?pasteid=<s:property value="#paste.id"/>"> <s:property value="#paste.title" />
</a> <span> <i class="iconfont"></i> <s:property value="#paste.glanceover" />
</span>
</dd>
</s:iterator>
</dl> <dl class="fly-panel fly-list-one">
<dt class="fly-panel-title">近期热议</dt>
<s:iterator value="#ansnumPageBean.list" var="paste">
<dd>
<a href="${pageContext.request.contextPath }/PasteAction_getDetail?pasteid=<s:property value="#paste.id"/>"> <s:property value="#paste.title" />
</a> <span> <i class="iconfont"></i> <s:property value="#paste.ansnum" />
</span>
</dd>
</s:iterator>
</dl>
</div>
</div> <%-- <script type="text/javascript" charset="utf-8" src="res/js/kindeditor.js"></script>
<script type="text/javascript">
KE.show({
id : 'L_content',
resizeMode : 1,
items : [ 'fontname', 'fontsize', 'textcolor', 'bgcolor', 'bold',
'italic', 'underline', 'removeformat', 'justifyleft',
'justifycenter', 'justifyright', 'insertorderedlist',
'insertunorderedlist', 'emoticons', 'image', 'link' ]
});
</script> --%>
<script type="text/javascript" charset="utf-8" src="js/kindeditor.js"></script>
<script type="text/javascript">
KE.show({
id : 'content',
resizeMode : 1,
cssPath : './index.css',
items : [ 'fontname', 'fontsize', 'textcolor', 'bgcolor', 'bold',
'italic', 'underline', 'removeformat', 'justifyleft',
'justifycenter', 'justifyright', 'insertorderedlist',
'insertunorderedlist', 'emoticons', 'image', 'link' ]
});
</script>
<script>
layui.cache.page = '';
layui.cache.user = {
username : '游客',
uid : -1,
avatar : '../res/images/avatar/00.jpg',
experience : 83,
sex : '男'
};
layui.config({
version : "2.0.0",
base : '../res/mods/'
}).extend({
fly : 'index'
}).use('fly');
</script>
</body>
</html>
detail.jsp
package com.Gary.web; import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List; import com.Gary.domain.Answer;
import com.Gary.domain.Paste;
import com.Gary.domain.User;
import com.Gary.service.AnswerService;
import com.Gary.service.PasteService;
import com.Gary.service.PraiseService;
import com.Gary.utils.PageBean;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven; public class PasteAction extends ActionSupport implements ModelDriven<Paste> { public Paste paste = new Paste();
private String pasteid; private PasteService pasteService;
private AnswerService answerService;
private PraiseService praiseService;
//解决帖子
public String solvePaste() throws Exception{ pasteService.solvePasteByIdAndAnswerid(pasteid,paste.getAnswerid());
ActionContext.getContext().put("pasteid", pasteid); return "toDetail";
} //查看帖子详细信息
public String getDetail() throws Exception{ User user = (User)ActionContext.getContext().getSession().get("user"); //得到最近热帖
PageBean glanceoverPageBean = pasteService.getGlanceoverPageBean(null);
ActionContext.getContext().put("glanceoverPageBean", glanceoverPageBean); //得到最近热议
PageBean ansnumPageBean = pasteService.getAnsnumPageBean(null);
ActionContext.getContext().put("ansnumPageBean", ansnumPageBean); //获得帖子
Paste paste = pasteService.findPasteByIdReturnPaste(pasteid);
ActionContext.getContext().put("paste", paste); //获得该帖子的所有回复
List<Answer> answerList = answerService.findAllAnswerByPasteid(pasteid);
for(Answer answer:answerList)
{
if(user != null)
{
//判断用户是否点赞了该回复
boolean success = praiseService.findPraiseByIdReturnPraise(user.getId(),answer.getId());
if(success)
{
//如果查询到用户点赞了该回复，将loginUserIsAgree设置为1
answer.setLoginUserIsAgree(1);
}
else
{
//如果没有查询到用户点赞了该回复，将loginUserIsAgree设置为0
answer.setLoginUserIsAgree(0);
}
}
else
{
//如果没有登陆，将loginUserIsAgree设置为0
answer.setLoginUserIsAgree(0);
}
}
ActionContext.getContext().put("answerList", answerList); return "detail";
} public PraiseService getPraiseService() {
return praiseService;
} public void setPraiseService(PraiseService praiseService) {
this.praiseService = praiseService;
} public AnswerService getAnswerService() {
return answerService;
} public void setAnswerService(AnswerService answerService) {
this.answerService = answerService;
} //添加帖子
public String addPaste() throws Exception {
User user = (User)ActionContext.getContext().getSession().get("user"); if(user==null)
{
ActionContext.getContext().put("error", "只有登陆之后才可以发帖子！！");
return "error";
} //private Integer ansnum;
paste.setAnsnum(0);
//private String createtime;
Date date = new Date(System.currentTimeMillis());
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
String createtime = format.format(date);
paste.setCreatetime(createtime);
//private Integer glanceover;
paste.setGlanceover(0);
//是否结帖 0未结 1结束
//private Integer solve;
paste.setSolve(0);
//private Integer isdelete;
paste.setIsdelete(0);
//private User user; paste.setUser(user); pasteService.addPaste(paste); //重定向到主页
return "toIndex";
} public PasteService getPasteService() {
return pasteService;
} public void setPasteService(PasteService pasteService) {
this.pasteService = pasteService;
} @Override
public Paste getModel() {
// TODO Auto-generated method stub
return paste;
} public String getPasteid() {
return pasteid;
} public void setPasteid(String pasteid) {
this.pasteid = pasteid;
} }
PasteAction.java
package com.Gary.service; import com.Gary.dao.PraiseDao;
import com.Gary.domain.Praise; public class PraiseService { private PraiseDao praiseDao; public boolean findPraiseByIdReturnPraise(String userid, String answerid) {
Praise praise = praiseDao.findPraiseByIdReturnPraise(userid,answerid);
return praise==null?false:true;
} public void addPraise(Praise praise) {
praiseDao.addPraise(praise); } public PraiseDao getPraiseDao() {
return praiseDao;
} public void setPraiseDao(PraiseDao praiseDao) {
this.praiseDao = praiseDao;
} }
praiseService.java
package com.Gary.web; import com.Gary.domain.Answer;
import com.Gary.domain.Praise;
import com.Gary.domain.User;
import com.Gary.service.AnswerService;
import com.Gary.service.PraiseService;
import com.Gary.vo.PrimaryKey;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport; public class PraiseAction extends ActionSupport{ private String answerid;
private String pasteid;
private AnswerService answerService;
private PraiseService praiseService; public String getPasteid() {
return pasteid;
} public void setPasteid(String pasteid) {
this.pasteid = pasteid;
} //添加赞
public String addPraise() throws Exception{ //肯定可以获得（用户未登录不能点赞，只有登录后才可以点赞）
User user = (User) ActionContext.getContext().getSession().get("user"); if(user == null)
{
ActionContext.getContext().put("error", "未登录不允许点赞！！");
return "error";
}
//根据answerid查找Answer对象
Answer answer = answerService.findAnswerByIdReturnAnswer(answerid);
//申明联合主键
PrimaryKey primaryKey = new PrimaryKey();
//放置对象
primaryKey.setAnswer(answer);
primaryKey.setUser(user);
//创建赞的类
Praise praise = new Praise();
//将联合主键放入类的对象中
praise.setPrimaryKey(primaryKey); praiseService.addPraise(praise);
answerService.addAnswerAgree(answerid); ActionContext.getContext().put("pasteid", pasteid);
return "toDetail";
} public AnswerService getAnswerService() {
return answerService;
} public void setAnswerService(AnswerService answerService) {
this.answerService = answerService;
} public PraiseService getPraiseService() {
return praiseService;
} public void setPraiseService(PraiseService praiseService) {
this.praiseService = praiseService;
} public String getAnswerid() {
return answerid;
} public void setAnswerid(String answerid) {
this.answerid = answerid;
} }
PraiseAction.java
package com.Gary.service; import java.util.List; import com.Gary.dao.AnswerDao;
import com.Gary.dao.PasteDao;
import com.Gary.domain.Answer;
import com.Gary.domain.Paste; public class AnswerService { private AnswerDao answerDao;
private PasteDao pasteDao; public void addAnswerAgree(String answerid) {
Answer answer = answerDao.findAnswerById(answerid);
answer.setAgree(answer.getAgree() + 1);
//第二种方式sql
//update answer set agree = agree +1 where answer id = ?
} //根据answerid查找answer对象
public Answer findAnswerByIdReturnAnswer(String answerid) {
Answer answer = answerDao.findAnswerById(answerid); return answer;
} public List<Answer> findAllAnswerByPasteid(String pasteid) { Paste paste = pasteDao.findPasteByIdReturnPaste(pasteid);
List<Answer> answerList = null;
// 判断paste中的solve是否为1
if (paste.getSolve() == 1) {
// 查找最佳答案
Answer answer = answerDao.findAnswerById(paste.getAnswerid());
// 查找所有答案
answerList = answerDao.findAllAnswerByPasteid(pasteid);
// 查找所有答案中包括了最佳答案所以将最佳答案删除
answerList.remove(answer);
// 在头元素中插入最佳答案
answerList.add(0, answer);
} else {
answerList = answerDao.findAllAnswerByPasteid(pasteid);
} return answerList;
} public void addAnswer(Answer answer, Paste paste) { paste.setAnsnum(paste.getAnsnum() + 1);
answerDao.addAnswer(answer);
} public void deleteAnswerById(String answerid, Paste paste) {
paste.setAnsnum(paste.getAnsnum()-1);
answerDao.deleteAnswerById(answerid);
} public AnswerDao getAnswerDao() {
return answerDao;
} public void setAnswerDao(AnswerDao answerDao) {
this.answerDao = answerDao;
} public PasteDao getPasteDao() {
return pasteDao;
} public void setPasteDao(PasteDao pasteDao) {
this.pasteDao = pasteDao;
} }
AnserService.java
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