前解析json已使用get方法,但是,假设抛出将解决很烦人中断。
今天发现JSONObject还提供了一个更好用的方法opt。看来以后文档还是要更加认真的读的。以下是文档中的原文。
A JSONObject constructor can be used to convert an external form JSON text into an internal form whose values can be retrieved with the get
and opt
methods,
or to convert values into a JSON text using the put
and toString
methods. A get
method
returns a value if one can be found, and throws an exception if one cannot be found. An opt
method returns a default value instead of throwing an exception, and so is useful for
obtaining optional values.
详见:http://www.json.org/javadoc/org/json/JSONObject.html
版权声明:本文博客原创文章,博客,未经同意,不得转载。