Question

怎么把后台查出来的json字符串转换成jquery easyui combotree需要的json格式

Answer 1

jquery easyui之tree控件的数据格式化有如下属性：

1. id：节点ID，对加载远程数据很重要

2. text：显示节点文本

3. state：节点状态，'open' 或 'closed'，默认：'open'。如果为'closed'的时候，将不自动展开该节点

4. checked：表示该节点是否被选中

5. attributes: 被添加到节点的自定义属性

6. children: 一个节点数组声明了若干节点

示例：

[{    
    "id":1,    
    "text":"Folder1",    
    "iconCls":"icon-save",    
    "children":[{    
        "text":"File1",    
        "checked":true   
    },{    
        "text":"Books",    
        "state":"open",    
        "attributes":{    
            "url":"/demo/book/abc",    
            "price":100    
        },    
        "children":[{    
            "text":"PhotoShop",    
            "checked":true   
        },{    
            "id": 8,    
            "text":"Sub Bookds",    
            "state":"closed"   
        }]    
    }]    
},{    
    "text":"Languages",    
    "state":"closed",    
    "children":[{    
        "text":"Java"   
    },{    
        "text":"C#"   
    }]    
}]

Answer 2

直接在后台拼写成combotree能识别的json字符串

追问

怎么拼写？本人刚刚接触这些东西 ，求举个详细的例子 （后台查询出来的是一个List）

追答

如果是list可以用JSONArray a =JSONArray.fromObject(list);进行转换

Answer 3

var data ='[{"text":"事故损失类","state":"closed","Ucode":"0002","Pcode":"-1","Ulevel":"1","id":"1","children":[{"text":"车损附件","state":null,"Ucode":"0003","Pcode":"0002","Ulevel":"2","id":"11","children":[{"text":"车辆正面45度","state":null,"Ucode":"0004","Pcode":"0003","Ulevel":"3","id":"111","children":null},{"text":"车辆尾部45度","state":null,"Ucode":"0005","Pcode":"0003","Ulevel":"3","id":"112","children":null}]},{"text":"货物损失","state":null,"Ucode":"0006","Pcode":"0002","Ulevel":"2","id":"12","children":[{"text":"车辆正面45度","state":null,"Ucode":"0007","Pcode":"0006","Ulevel":"3","id":"121","children":null}]}]},{"text":"车损附件","state":null,"Ucode":"0003","Pcode":"0002","Ulevel":"2","id":"11","children":[{"text":"车辆正面45度","state":null,"Ucode":"0004","Pcode":"0003","Ulevel":"3","id":"111","children":null},{"text":"车辆尾部45度","state":null,"Ucode":"0005","Pcode":"0003","Ulevel":"3","id":"112","children":null}]},{"text":"货物损失","state":null,"Ucode":"0006","Pcode":"0002","Ulevel":"2","id":"12","children":[{"text":"车辆正面45度","state":null,"Ucode":"0007","Pcode":"0006","Ulevel":"3","id":"121","children":null}]}]';
var k= JSON.parse(data);
$("#cc").combotree('loadData',k);
重要的是要把json字符串序列化