从toString转换回Object [英] Converting back from toString to Object

问题描述

有没有办法将toString转换回Java中的对象？

Is there any way to convert from toString back to the object in Java?

例如：

Map<String, String> myMap = new HashMap<String, String>();
myMap.put("value1", "test1");
myMap.put("value2", "test2");
String str = myMap.toString();

有没有办法将此String转换回地图？

Is there any way to convert this String back to the Map?

推荐答案

简答：否。

稍长答案：不使用 toString 。如果有问题的对象支持序列化，那么可以从序列化的字符串返回到内存中的对象，但这是一个完整的蜡球。了解序列化和反序列化以了解如何执行此操作。

Slightly longer answer: not using toString. If the object in question supports serialization then you can go from the serialized string back to the in-memory object, but that's a whole 'nother ball of wax. Learn about serialization and deserialization to find out how to do this.

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