JavaWeb_(SSH论坛)_七、辅助模块
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
为避免代码冗余，可以在struct.xml中配置全局结果集
<!-- 配置全局结果集 -->
<global-results>
<!-- 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">${pasteid}</param>
</result>
<result name="error">/login.jsp</result>
</global-results>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
"http://struts.apache.org/dtds/struts-2.5.dtd"> <struts> <!--开启动态方法调用 -->
<constant name="struts.devMode" value="true"></constant>
<constant name="struts.enable.DynamicMethodInvocation" value="true"></constant> <!-- 告诉struts不用自己创建Action,Spring来帮你创建 -->
<constant name="struts.objectFactory" value="spring"></constant>
<package name="Gary_SSHForum" namespace="/" extends="struts-default">
<!-- 配置全局结果集 -->
<global-results>
<!-- 重定向到Action -->
<result name="toDetail" type="redirectAction">
<param name="actionName"> PasteAction_getDetail </param>
<!-- struts不认识pasteid则会封装到重定向的action中 -->
<param name="pasteid">${pasteid}</param>
</result>
<result name="error">/login.jsp</result>
</global-results>
<!-- 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="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> <!-- 转发到jsp -->
<result name="detail">/detail.jsp</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}"> </action> <action name="PraiseAction_*" class="com.Gary.web.PraiseAction" method="{1}"> </action> </package> </struts>
struct.xml
分析取消赞
<!-- 登录用户点赞了哪些回复 -->
<s:if test="#answer.loginUserIsAgree==0">
<a href="${pageContext.request.contextPath }/PraiseAction_addPraise?answerid=<s:property value="#answer.id" />&pasteid=<s:property value="#paste.id" />">
<span class="jieda-zan" type="zan">
<i class="iconfont icon-zan"></i>
<em>
<s:property value="#answer.agree" />
</em>
</span>
</a>
</s:if>
<s:else>
<!-- 取消赞 -->
<a href="${pageContext.request.contextPath }/PraiseAction_deletePraise?answerid=<s:property value="#answer.id" />&pasteid=<s:property value="#paste.id" />">
<span class="jieda-zan zanok" type="zan"> <i class="iconfont icon-zan"></i>
<em>
<s:property value="#answer.agree" />
</em>
</span>
</a>
</s:else>
用户取消赞Web层
//取消赞
public String deletePraise() 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"); //封装user
//封装answer
Answer answer = answerService.findAnswerByIdReturnAnswer(answerid);
//封装primarykey
PrimaryKey primaryKey = new PrimaryKey();
primaryKey.setAnswer(answer);
primaryKey.setUser(user);
//封装praise
Praise praise = new Praise();
praise.setPrimaryKey(primaryKey); praiseService.deletePraise(praise);
answerService.deleteAnswerAgree(answerid); ActionContext.getContext().put("pasteid", pasteid);
return "toDetail"; }
删除赞Dao层
public void deletePraise(Praise praise) {
Session session = getHibernateTemplate().getSessionFactory().getCurrentSession();
session.delete(praise);
}
<%@ 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="${pageContext.request.contextPath }/PraiseAction_addPraise?answerid=<s:property value="#answer.id" />&pasteid=<s:property value="#paste.id" />">
<span class="jieda-zan" type="zan">
<i class="iconfont icon-zan"></i>
<em>
<s:property value="#answer.agree" />
</em>
</span>
</a>
</s:if>
<s:else>
<!-- 取消赞 -->
<a href="${pageContext.request.contextPath }/PraiseAction_deletePraise?answerid=<s:property value="#answer.id" />&pasteid=<s:property value="#paste.id" />">
<span class="jieda-zan zanok" type="zan"> <i class="iconfont icon-zan"></i>
<em>
<s:property value="#answer.agree" />
</em>
</span>
</a>
</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 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;
} //取消赞
public String deletePraise() 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"); //封装user
//封装answer
Answer answer = answerService.findAnswerByIdReturnAnswer(answerid);
//封装primarykey
PrimaryKey primaryKey = new PrimaryKey();
primaryKey.setAnswer(answer);
primaryKey.setUser(user);
//封装praise
Praise praise = new Praise();
praise.setPrimaryKey(primaryKey); praiseService.deletePraise(praise);
answerService.deleteAnswerAgree(answerid); ActionContext.getContext().put("pasteid", pasteid);
return "toDetail"; } //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 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;
} public void deletePraise(Praise praise) {
praiseDao.deletePraise(praise);
} }
PraiseService.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;
} public void deleteAnswerAgree(String answerid) {
Answer answer = answerDao.findAnswerById(answerid);
answer.setAgree(answer.getAgree() - 1);
} }
AnswerService.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);
} //根据id找praise
public Praise findPraiseByIdReturnPraise(String userid, String answerid) {
Session session = getHibernateTemplate().getSessionFactory().getCurrentSession();
String sql = "select * from praise where userid = ? and answerid = ?";
NativeQuery query = session.createSQLQuery(sql);
query.addEntity(Praise.class);
query.setParameter(1, userid);
query.setParameter(2, answerid);
Praise result = (Praise) query.uniqueResult();
return result;
} public void deletePraise(Praise praise) {
Session session = getHibernateTemplate().getSessionFactory().getCurrentSession();
session.delete(praise);
} }
PraiseDao
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