Java读取本地json文件及相应处理方法
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如下所示：
```javascript
//读取json文件地址
/* String path = getClass().getClassLoader().getResource("menu.json").toString();
path = path.replace("\\", "/");
if (path.contains(":")) {
path = path.replace("file:/", "");
}*/
ClassPathResource resource = new ClassPathResource("menu.json");
File filePath = resource.getFile();
JSONArray btnArray = null;
//读取文件
String input = FileUtils.readFileToString(filePath, "UTF-8");
//将读取的数据转换为JSONObject
JSONObject jsonObject = JSONObject.fromObject(input);
if (jsonObject != null) {
//取出按钮权限的数据
btnArray = jsonObject.getJSONArray("btnList");
}
Map> btnMap = new HashMap();
Iterator num = btnArray.iterator();
//遍历JSONArray，转换格式。按按钮集合按模块(name)放入map中
while (num.hasNext()) {
JSONObject btn = (JSONObject) num.next();
btnMap.put((String) btn.get("name"), JSONArray.toList((JSONArray) btn.get("children"), new MenuVo(), new JsonConfig()));
}
```
json文件
```javascript
{
"btnList": [
{
"name": "用户管理",
"children": [
{
"id": "yhgladd",
"name": "添加"
},
{
"id": "yhgledit",
"name": "编辑"
},
{
"id": "yhgldelete",
"name": "暂停"
},
{
"id": "yhglstart",
"name": "启用"
},
{
"id": "yhglsee",
"name": "查看"
}
]
},
{
"name": "角色管理",
"children": [
{
"id": "jsgladd",
"name": "添加"
},
{
"id": "jsgledit",
"name": "编辑"
},
{
"id": "jsglauth",
"name": "授权"
},
{
"id": "jsgldelete",
"name": "删除"
}
]
}
]
}
```
