package com.etown.action;
import java.io.UnsupportedEncodingException;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import com.etown.dao.CommonDAO;
import com.etown.util.SqlMgr;
import com.etown.util.StringUtil;
/**
* 论坛
* @author 大漠
*
*/
public class ForumAction extends BaseAction {
private int postType;
private String blockId; //版块ID
private String postTitle; //帖子标题
private String content; //帖子内容
private String postId; //帖子ID
private String parentId; //父帖ID
private int totalPages; //分页用：总页数
private int pageIndex=1; //分页用：当前显示的页码
private int postPerPage=30; //每页显示的条数，默认为30
/**
* 加载最新30帖
* 带分页，默认取0到30条
* 注意：此方法是进入论坛版块时的入口
* @return
*/
public String loadPosts30(){
//论坛左侧的版块树只生成一次，存入Session
String treeStr=(String) getSessionAttr("fTree");
if(treeStr==null){
treeStr=generateBlockTree();
this.setSessionAttr("fTree",treeStr);
}
//josn形式的论坛版块数据
if(getSessionAttr("rootBlocks")==null){
this.getForumBlocks();
}
//取指定板块的最新30帖，带分页，根据页码pageIndex和每页帖子数postPerPage计算
int start=(pageIndex-1)*postPerPage;
int end=pageIndex*postPerPage;
JSONArray arr=CommonDAO.getList(SqlMgr.getSql("GET_30_POSTS"),blockId,blockId,blockId,start,end);
this.setReqAttr("posts30",arr.toString());
this.setSessionAttr("blockId", blockId);
//取当前版块的总页数
JSONObject obj=CommonDAO.getSingle(SqlMgr.getSql("GET_POST_COUNT"), this.blockId);
if(obj!=null){
String temp=obj.getString("total");
if(!StringUtil.isEmpty(temp)){
this.totalPages=(int) Math.ceil(Float.parseFloat(temp)/postPerPage);
this.setReqAttr("totalPages", totalPages);
}
}
return "success";
}
/**
* 读取帖子内容
* @return
*/
public String readPost(){
//读取主帖和跟帖，包括每个帖子对应的用户信息；每页20条，postId为主帖ID，每页显示20个帖子
int ct=20;
int start=(pageIndex-1)*ct;
int end=pageIndex*ct;
JSONArray arr=CommonDAO.getList(SqlMgr.getSql("READ_POST"),postId,postId,start,end);
System.out.println(arr.toString());
//获取跟帖总页数
JSONObject obj=CommonDAO.getSingle(SqlMgr.getSql("GET_COMMENT_COUNT"),postId,postId);
if(obj!=null){
String temp=obj.getString("total");
if(!StringUtil.isEmpty(temp)){
this.totalPages=(int) Math.ceil(Float.parseFloat(temp)/ct);
this.setReqAttr("totalPages", totalPages);
}
}
//阅读数+1
CommonDAO.update(SqlMgr.getSql("READ_PLUS"), postId);
//主帖用户金币数增加0.01
CommonDAO.update(SqlMgr.getSql("ADD_USER_MONEY"),0.01,getSessionAttr("userName"));
this.setReqAttr("posts",arr.toString());
return "success";
}
/**
* 发新帖
* @return
*/
public String addNewPost() {
String userName=(String) this.getSessionAttr("userName");
// for(int i=0;i<30;i++){
//插数据表
CommonDAO.update(SqlMgr.getSql("ADD_NEW_POST"), userName,postTitle,content,blockId,"");
//用户金币数增加
CommonDAO.update(SqlMgr.getSql("ADD_USER_MONEY"),30,getSessionAttr("userName"));
// }
return "success";
}
/**
* 删除帖子
* @return
*/
public String delPost(){
//如果删除的是主帖，所有跟帖删除，跳转到论坛对应版块的首页
CommonDAO.update(SqlMgr.getSql("DEL_POST"), postId,postId);
//如果删除的是跟帖，刷新读帖页面
if(parentId.equals("0")){
return "toMain";
}else{
return "toPost";
}
}
/**
* 跟帖啊
* @return
* @throws UnsupportedEncodingException
*/
public String commentPost() throws UnsupportedEncodingException{
String userName=(String) this.getSessionAttr("userName");
//插数据表
CommonDAO.update(SqlMgr.getSql("ADD_COMMENT_POST"), userName,content,0,0,"",parentId);
//跟帖数+1，更新最新回复时间
CommonDAO.update(SqlMgr.getSql("COMMENT_PLUS"), parentId);
//主帖用户金币数增加0.05
CommonDAO.update(SqlMgr.getSql("ADD_USER_MONEY"),0.01,getSessionAttr("userName"));
return "success";
}
/**
* 生成论坛左侧树
* 手动拼接HTML
* @return
*/
private String generateBlockTree(){
StringBuffer result=new StringBuffer();
result.append("<ul id='navigation'>");//注意：此ID和页面脚本绑定，不要更改
JSONArray roots=CommonDAO.getList(SqlMgr.getSql("GET_FORUM_CHILD_BLOCK"),0);
if(roots!=null){
for(int i=0;i<roots.size();i++){
JSONObject jsonObj=roots.getJSONObject(i);
String bId=jsonObj.getString("block_id");
String link=jsonObj.getString("link");
if(i==0){
this.blockId=jsonObj.getString("block_id");
}
if(link.equals("1")){
result.append("<li><a id='"+bId+"' href='loadPosts30.action?blockId="+bId+"'>");
}else{
result.append("<li><a id='"+bId+"' href='#'>");
}
result.append(jsonObj.get("block_name"));
result.append("</a>");
String blockId=jsonObj.getString("block_id");
JSONArray children=CommonDAO.getList(SqlMgr.getSql("GET_FORUM_CHILD_BLOCK"), blockId);
if(children!=null&&children.size()!=0){
result.append("<ul>");
for(int j=0;j<children.size();j++){
JSONObject child=children.getJSONObject(j);
bId=child.getString("block_id");
link=child.getString("link");
if(link.equals("1")){
result.append("<li><a id='"+bId+"' href='loadPosts30.action?blockId="+bId+"'>");
}else{
result.append("<li><a id='"+bId+"' href='#'>");
}
result.append(child.get("block_name"));
result.append("</a></li>");
}
result.append("</ul></li>");
}else{
result.append("</li>");
}
}
}
result.append("</ul>");
return result.toString();
}
/**
* 取论坛版块
* @return
*/
private void getForumBlocks(){
JSONArray roots=CommonDAO.getList(SqlMgr.getSql("GET_FORUM_ROOT_BLOCK"));
this.setSessionAttr("rootBlocks", roots.toString());
JSONObject chObj=new JSONObject();
for(int i=0;i<roots.size();i++){
JSONObject obj=roots.getJSONObject(i);
String bId=obj.getString("block_id");
JSONArray children=CommonDAO.getList(SqlMgr.getSql("GET_FORUM_CHILD_BLOCK"),bId);
chObj.put(bId, children.toString());
}
this.setSessionAttr("cBlockMap", chObj.toString());
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public String getPostTitle() {
return postTitle;
}
public void setPostTitle(String postTitle) {
this.postTitle = postTitle;
}
public int getPostType() {
return postType;
}
public void setPostType(int postType) {
this.postType = postType;
}
public String getPostId() {
return postId;
}
public void setPostId(String postId) {
this.postId = postId;
}
public String getParentId() {
return parentId;
}
public void setParentId(String parentId) {
this.parentId = parentId;
}
public int getPageIndex() {
return pageIndex;
}
public void setPageIndex(int pageIndex) {
this.pageIndex = pageIndex;
}
public int getTotalPages() {
return totalPages;
}
public void setTotalPages(int totalPages) {
this.totalPages = totalPages;
}
public String getBlockId() {
return blockId;
}
public void setBlockId(String blockId) {
this.blockId = blockId;
}
}