百度网盟推广怎么选择投放网站,wordpress 视频展示,仿《砍柴》网站程序,软件定制为什么不给源码maven编译#xff0c;springMVCspringspringJDBC框架。 要实现的功能是一个文件夹下#xff0c;可能显示n个文件夹#xff0c;每个文件夹下又可能显示n个文件夹。。。。 前台效果#xff1a; controller中的方法如下#xff1a; RequestMapping(value/index,m…maven编译springMVCspringspringJDBC框架。 要实现的功能是一个文件夹下可能显示n个文件夹每个文件夹下又可能显示n个文件夹。。。。 前台效果 controller中的方法如下 RequestMapping(value/index,methodRequestMethod.GET) public String getIndex(HttpServletRequest request,RequestParam(requiredfalse) Integer isHidden){ if(isHiddennull) isHidden 1;//1 showHidden request.setAttribute(list, cwInfoService.getAllCwInfo(isHidden)); return /jsp/coursewareSelectAll; } pojo类如下 package org.sakaiproject.courseware.pojo;import java.util.Date;import java.util.List;/** * 描述课件信息 * author Promise * Date2015-08-04 */public class CwInfo { /**主键*/ private Integer cwId; /**课件名称*/ private String cwName; /**课件路径*/ private String cwPath; /**创建人*/ private String createUser; /**创建时间*/ private Date createTime; /**修改时间*/ private Date updateTime; /**修改人*/ private String updateUser; /**父级编号*/ private Integer parentId; /**工具编号*/ private String toolId; /**课件描述*/ private String cwContent; /**是否隐藏 0隐藏 1显示*/ private Integer isHidden; /**包含有cwinfo对象的集合*/ private ListCwInfo cwInfo; //重点是我添加了一个属性用于存放子课件信息的parentId等于父课件信息的cwId用的集合 public ListCwInfo getCwInfo() { return cwInfo; } public void setCwInfo(ListCwInfo cwInfo) { this.cwInfo cwInfo; } public Integer getIsHidden() { return isHidden; } public void setIsHidden(Integer isHidden) { this.isHidden isHidden; } public Integer getCwId() { return cwId; } public void setCwId(Integer cwId) { this.cwId cwId; } public String getCwName() { return cwName; } public void setCwName(String cwName) { this.cwName cwName; } public String getCwPath() { return cwPath; } public void setCwPath(String cwPath) { this.cwPath cwPath; } public String getCreateUser() { return createUser; } public void setCreateUser(String createUser) { this.createUser createUser; } public Date getCreateTime() { return createTime; } public void setCreateTime(Date createTime) { this.createTime createTime; } public Date getUpdateTime() { return updateTime; } public void setUpdateTime(Date updateTime) { this.updateTime updateTime; } public String getUpdateUser() { return updateUser; } public void setUpdateUser(String updateUser) { this.updateUser updateUser; } public Integer getParentId() { return parentId; } public void setParentId(Integer parentId) { this.parentId parentId; } public String getToolId() { return toolId; } public void setToolId(String toolId) { this.toolId toolId; } public String getCwContent() { return cwContent; } public void setCwContent(String cwContent) { this.cwContent cwContent; }} dao中我用springJDBC操作数据库如下 package org.sakaiproject.courseware.dao.impl;import java.sql.ResultSet;import java.sql.SQLException;import java.util.ArrayList;import java.util.List;import javax.annotation.Resource;import org.sakaiproject.courseware.dao.CwInfoDao;import org.sakaiproject.courseware.pojo.CwInfo;import org.springframework.jdbc.core.JdbcTemplate;import org.springframework.jdbc.core.RowMapper;import org.springframework.stereotype.Repository;import org.springframework.transaction.annotation.Transactional;Repositorypublic class CwInfoDaoImpl implements CwInfoDao { Resource(namejdbcTemplate) private JdbcTemplate jdbcTemplate; SuppressWarnings(unchecked) public ListCwInfo findCwInfo(Integer cwId,Integer isHidden){ String sql select * from cw_info where parent_idcwId; if(isHidden1) sqlsql and is_hiddenisHidden; ListCwInfo list jdbcTemplate.query(sql, new cwMapper()); for (int i 0; i list.size(); i) { ListCwInfo cwList this.findCwInfo(list.get(i).getCwId(),isHidden); //这里实现了查询的递归方法 list.get(i).setCwInfo(cwList); } return list; } Override SuppressWarnings(unchecked) public ListCwInfo getAllCwInfo(Integer isHidden){ String sql select * from cw_info where parent_id0; if(isHidden1) sqlsql and is_hiddenisHidden; ListCwInfo countList jdbcTemplate.query(sql,new cwMapper()); for (int i 0; i countList.size(); i) { ListCwInfo cwList this.findCwInfo(countList.get(i).getCwId(),isHidden); countList.get(i).setCwInfo(cwList); } return countList; } class cwMapper implements RowMapper { //springJDBC要实现的类查询用的 Override public Object mapRow(ResultSet rs, int rowNum) throws SQLException { CwInfo cw new CwInfo(); cw.setCreateTime(rs.getDate(create_time)); cw.setCreateUser(rs.getString(create_user)); cw.setCwContent(rs.getString(cw_content)); cw.setCwId(rs.getInt(cw_id)); cw.setCwName(rs.getString(cw_name)); cw.setCwPath(rs.getString(cw_path)); cw.setParentId(rs.getInt(parent_id)); cw.setToolId(rs.getString(tool_id)); cw.setUpdateTime(rs.getDate(update_time)); cw.setUpdateUser(rs.getString(update_user)); cw.setIsHidden(rs.getInt(is_hidden)); return cw; }} 前台jsp页面我用的是一个jsp页面嵌套另一个jsp页面如下 % page languagejava contentTypetext/html; charsetUTF-8 pageEncodingUTF-8%% taglib prefixc urihttp://java.sun.com/jsp/jstl/core %div namespreadContentc:forEach items${list.cwInfo } varlisttr classodd td headersexpansion ${list.cwName } /td/trc:if test${not empty list.cwInfo } c:set varlist value${list.cwInfo} scoperequest / //传参用这种方式传递 c:import urlcourseContent.jsp / //重点是这里包含本页面本页面就叫做courseContent.jsp这是递归jsp页面/c:if/c:forEach/div 主要的jsp页面如下 % page languagejava importjava.util.* pageEncodingUTF-8%% taglib prefixc urihttp://java.sun.com/jsp/jstl/core %!DOCTYPE htmlbodytable div idcontent-content c:if test${not empty list } c:forEach items${list } varlist tr classodd td headerscheckboxes ${list.cwName } /td /tr c:if test${not empty list.cwInfo } c:set varlist value${list.cwInfo} scoperequest / //传参用这种方式传递 c:import urlcourseContent.jsp / //重点是这里调用了jsp的递归jsp方法 /c:if /c:forEach /c:if /div /c:forEach /c:if /div /table /form /div/bodyscript typetext/javascript src/library/js/jquery/jquery-1.9.1.min.js /script/html 转载于:https://www.cnblogs.com/zrui-xyu/p/4737227.html
