时间：2020-12-23 12:24:22 | 栏目：JAVA代码 | 点击：次
直接就把项目中的方法贴出来吧
/**
* 读出城市列表文件
*/
private String readCityFile() {
File file02 = new File(path_xinfu, "/cityList.json");
FileInputStream is = null;
StringBuilder stringBuilder = null;
try {
if (file02.length() != 0) {
/**
* 文件有内容才去读文件
*/
is = new FileInputStream(file02);
InputStreamReader streamReader = new InputStreamReader(is);
BufferedReader reader = new BufferedReader(streamReader);
String line;
stringBuilder = new StringBuilder();
while ((line = reader.readLine()) != null) {
// stringBuilder.append(line);
stringBuilder.append(line);
}
reader.close();
is.close();
} else {
mLoadingLayout.setStatus(LoadingLayout.Empty);
}
} catch (Exception e) {
e.printStackTrace();
}
return String.valueOf(stringBuilder);
}