目录
一、iframe
其实就是一个容器
二、前端页面搭建
在有iframe的基础下再去建立前端页面,借助中文文档
三、Dao层的开发
要想上述的数据实现,必须建立相关的数据库,实体类和dao方法等
bookdao方法代码如下
Moduledao方法代码如下
四、Service层的开发
BookService的代码如下
ModuleService的代码如下
五、Servlet层的开发
BookListServlet的代码如下
ModuleServlet的代码如下
六、前端页面
前端页面的代码如下
一、iframe
其实就是一个容器
用法如下:
$('#funcTab').tabs('add',{
title: node.text,
content:'<iframe frameborder=0 src="node.url " scrolling="no" style="width:100%;height:100%;"></iframe>',
closable:true
});
二、前端页面搭建
在有iframe的基础下再去建立前端页面,借助中文文档
格式如下:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<%@ include file="/common/head.jsp" %>
<title>Insert title here</title>
<script>
$(function(){
$('#bookTable').datagrid({
url: ctx+'/bookServlet',
pagination:true,
singleSelect:true,
queryParams: {
"bookName": $("#bookName").val()
},
columns:[[
{field:'id',title:'书本ID',width:100},
{field:'bookname',title:'名称',width:100},
{field:'price',title:'价格',width:100,align:'right'},
{field:'booktype',title:'类型',width:100,align:'right'}
]],
toolbar: '#bookTableToolbar'
});
$("#bookQry").click(function() {
qryBook();
});
qryBook();
function qryBook() {
$('#bookTable').datagrid("load", {
"bookName": $("#bookName").val()
})
};
});
</script>
</head>
<body>
<!-- 查询条件 -->
<div style="margin-top: 15px; margin-left:10px;">
<input class="easyui-textbox" id="bookName" style="width:300px">
<a id="bookQry" class="easyui-linkbutton" data-options="iconCls:'icon-search'">查询</a>
</div>
<div id="p" class="easyui-panel" style="padding:10px" data-options="fit:true, border:false">
<table id="bookTable" class="easyui-datagrid" style="width:100%;height:90%;">
</table>
</div>
<!-- 列表上方的工具条 -->
<div id="bookTableToolbar" style="text-align: right;">
<a href="#" id="addBookBtn" class="easyui-linkbutton" data-options="iconCls:'icon-add',plain:true"/a>
<a href="#" id="editBootBtn" class="easyui-linkbutton" data-options="iconCls:'icon-edit',plain:true"/a>
<a href="#" id="delBootBtn" class="easyui-linkbutton" data-options="iconCls:'icon-remove',plain:true"/a>
</div>
</body>
</html>
三、Dao层的开发
要想上述的数据实现,必须建立相关的数据库,实体类和dao方法等
bookdao方法代码如下
public class BookDao implements IBookDao {
@Override
public List<Book> getBooks(String name, int pageIndex, int pageSize) {
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
List<Book> list = new ArrayList<>();
try {
String sql = "select id,bookname,price,booktype,rownum as rid from t_book";
if(name != null && !"".equals(name)) {
sql += " where bookname like ?";
}
sql = "select * from (" + sql + ")b where b.rid between ? and ?";
con = DBHelper.getsCon();
ps = con.prepareStatement(sql);
int start =(pageIndex-1)*pageSize+1;
int end = pageIndex*pageSize;
if(name != null && !"".equals(name)) {
ps.setString(1, name+"%");
ps.setInt(2, start);
ps.setInt(3, end);
} else {
ps.setInt(1, start);
ps.setInt(2, end);
}
rs = ps.executeQuery();
while(rs.next()) {
Book m = new Book();
m.setId(rs.getInt("id"));
m.setBookname(rs.getString("bookname"));
m.setPrice(rs.getString("price"));
m.setBooktype(rs.getString("booktype"));
list.add(m);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
DBHelper.Close(con, ps, rs);
}
return list;
}
@Override
public int getTotalPage() {
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
int n = 0;
try {
con= DBHelper.getsCon();
String sql = "select count(*) from t_book";
ps = con.prepareStatement(sql);
rs= ps.executeQuery();
if(rs.next()) {
n = rs.getInt(1);
}
} catch (Exception e) {
e.printStackTrace();
}finally {
DBHelper.Close(con, ps, rs);
}
return n;
}
public static void main(String[] args) {
BookDao dao = new BookDao();
List<Book> books = dao.getBooks("璐�", 1, 5);
books.forEach(t -> System.out.println(t));
}
}
Moduledao方法代码如下:
public class ModuleDao implements IModuleDao {
@Override
public List<Module> listModel(int pid) {
List<Module> list = new ArrayList<>();
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
try {
String sql = "select id,pid,text,icon,url,sort from t_module where pid=? order by sort";
con = DBHelper.getsCon();
ps = con.prepareStatement(sql);
ps.setInt(1, pid);
rs = ps.executeQuery();
while(rs.next()) {
Module m = new Module();
m.setId(rs.getInt("id"));
m.setPid(rs.getInt("pid"));
m.setText(rs.getString("text"));
m.setUrl(rs.getString("url"));
m.setSort(rs.getInt("sort"));
list.add(m);
}
} catch (Exception e) {
} finally {
DBHelper.Close(con, ps, rs);
}
return list;
}
public static void main(String[] args) {
ModuleDao dao = new ModuleDao();
List<Module> list = dao.listModel(21);
list.forEach(t->System.out.println(t));
}
}
四、Service层的开发
BookService的代码如下:
public class BookService implements IBookService {
private IBookDao dao = new BookDao();
@Override
public List<Book> getBooks(String name, int pageIndex, int pageSize) {
return dao.getBooks(name, pageIndex, pageSize);
}
@Override
public int getTotalPage() {
return dao.getTotalPage();
}
}
ModuleService的代码如下:
public class ModuleService implements IModuleService {
private IModuleDao dao = new ModuleDao();
@Override
public List<Module> listModel(int pid) {
List<Module> list = dao.listModel(pid);
for(Module m: list) {
if(m.getUrl() == null || "".equals(m.getUrl().trim())) {
m.setChildren(listModel(m.getId()));
}
}
return list;
}
public static void main(String[] args) {
IModuleService service = new ModuleService();
List<Module> list = service.listModel(-1);
list.forEach(t->System.out.println(t));
}
}
五、Servlet层的开发
BookListServlet的代码如下:
@WebServlet("/bookServlet")
public class BookListServlet extends HttpServlet {
private IBookService service = new BookService();
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
doPost(req, resp);
}
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
req.setCharacterEncoding("utf-8");
resp.setContentType("application/json; charset=utf-8");
String name = req.getParameter("bookName");
String pageIndex = req.getParameter("page");
int pid = pageIndex == null || "".equals(pageIndex) ? 1 : Integer.parseInt(pageIndex);
int pageSize = 10;
List<Book> list = service.getBooks(name, pid, pageSize);
int totalPage = service.getTotalPage();
Map<String,Object> data = new HashMap<>();
data.put("total", totalPage);
data.put("rows", list);
String json = JSON.toJSONString(data);
PrintWriter out = resp.getWriter();
out.write(json);
out.flush();
out.close();
}
}
ModuleServlet的代码如下:
@WebServlet("/moduleServlet")
public class ModuleServlet extends HttpServlet {
private IModuleService service = new ModuleService();
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
doPost(req, resp);
}
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
req.setCharacterEncoding("utf-8");
resp.setContentType("application/json; charset=utf-8");
List<Module> list = service.listModel(-1);
PrintWriter out = resp.getWriter();
String str = JSON.toJSONString(list);
out.write(str);
out.flush();
out.close();
}
}
六、前端页面
前端页面的代码如下:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<%@ include file="common/head.jsp" %>
<title>Insert title here</title>
<script type="text/javascript">
$(function(){
$('#menuTree').tree({
url:ctx + '/moduleServlet',
onDblClick:function(node) {
let children = $('#menuTree').tree('getChildren',node.target);
if(children <= 0) {
if($('#funcTab').tabs('exists',node.text))
return;
$('#funcTab').tabs('add',{
title: node.text,
content:'<iframe frameborder=0 src="'
+ node.url
+ '" scrolling="no" style="width:100%;height:100%;"></iframe>',
closable:true
});
}
}
});
});
</script>
</head>
<body class="easyui-layout">
<div data-options="region:'north',title:'North Title',split:true" style="height:100px;"></div>
<div data-options="region:'south',title:'South Title',split:true" style="height:100px;"></div>
<div data-options="region:'west',title:'West',split:true" style="width:200px;">
<ul id="menuTree" class="easyui-tree"></ul>
</div>
<div data-options="region:'center'" style="padding:5px;background:#eee;">
<!-- - -->
<div id="funcTab" class="easyui-tabs" style="width:100%;height:100%;">
<div title="首页" style="padding:20px;display:none;">
tab1
</div>
</div>
<!-- -->
</div>
</body>
</html>