业务层方法
public String query() {
List<Role> list = roledao.query();
List<Map<String,Object>> rolelist = new ArrayList<Map<String,Object>>();
for (Role role : list) {
Map<String,Object> roles= new HashMap<String, Object>();
roles.put("id", String.valueOf(role.getRid()));
roles.put("text", role.getName());
roles.put("cls", "folder");
List<Map<String,Object>> userlist =new ArrayList<Map<String,Object>>();
for (Users users : role.getUsers()) {
Map<String,Object> user=new HashMap<String, Object>();
user.put("id", String.valueOf(users.getId()));
user.put("text",users.getUsername());
user.put("leaf", true);
//包含checked属性时, 生成的树中带有复选框
user.put("checked", false);
userlist.add(user);
}
roles.put("children", userlist);
rolelist.add(roles);
}
// Map<String,List<Map<String,Object>>> map= new HashMap<String, List<Map<String,Object>>>();
// map.put('root',rolelist );
return JSONArray.fromObject(rolelist).toString();
}
控制层方法
public class RoleAction implements Action {
private IRoleService rsi;
private String json;//注入json
public String getJson() {
return json;
}
public void setJson(String json) {
this.json = json;
}
public void setRsi(IRoleService rsi) {
this.rsi = rsi;
}
public String execute() throws Exception {
// TODO Auto-generated method stub
return null;
}
public String query(){
json=rsi.query();//赋值
return SUCCESS;
}
}
js文件读取json数据
Ext.onReady(function() {
var tree = new Ext.tree.TreePanel( {
renderTo : 'tree-div',
title : '用户权限表',
height : 768,
width : 1024,
useArrows : true,
autoScroll : true,
animate : true,
enableDD : true,
containerScroll : true,
rootVisible : false,
frame : true,
root : {
nodeType : 'async',
setRootNode: 'root',
id:'root'
},
// auto create TreeLoader
dataUrl : 'queryAll.action',
listeners : {
'checkchange' : function(node, checked) {
if (checked) {
node.getUI().addClass('complete');
} else {
node.getUI().removeClass('complete');
}
}
},
buttons : [ {
text : 'Get Completed Tasks',
handler : function() {
var msg = '', selNodes = tree.getChecked();
Ext.each(selNodes, function(node) {
if (msg.length > 0) {
msg += ', ';
}
msg += node.text;
});
Ext.Msg.show( {
title : 'Completed Tasks',
msg : msg.length > 0 ? msg : 'None',
icon : Ext.Msg.INFO,
minWidth : 200,
buttons : Ext.Msg.OK
});
}
} ]
});
tree.getRootNode().expand(true);
});
jsp页面
<html>
<head>
<title>Checkbox TreePanel</title>
<link rel="stylesheet" type="text/css" href="ext-3.2.1/resources/css/ext-all.css" />
<script type="text/javascript" src="ext-3.2.1/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="ext-3.2.1/ext-all.js"></script>
<script type="text/javascript" src="js/check-tree.js"></script>
</head>
<body>
<div id="tree-div"></div>
</body>
</html>
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