I need help！how to get UUID？我需要帮助怎么获得UUID

[chenabc1022]

I use there

TextItem UUID = new TextItem();
String UU
UUID.setValue(UU.getValue(UUID.randomUUID().toString());

then Errors in 'XXXXXXXXXX'
line 248:No Source code is available for type java.util.UUID; did you forget to inherit a required module?

我用的代码在下面
TextItem UUID = new TextItem();
String UU
UUID.setValue(UU.getValue(UUID.randomUUID().toString());
使用之后报错第一次可以获取到UUID但是第二次就获取不到了，报错如下
Errors in 'XXXXXXXXXX'
line 248:No Source code is available for type java.util.UUID; did you forget to inherit a required module?

[Isomorphic]

java.util.UUID is not available for client-side coding in GWT. Check out the http://code.google.com/webtoolkit/do...atibility.html GWT documentation for an overview of available Java classes and extensions in GWT.

[SantiagoA]

There is an implementation available for use with GWT.
It differs from the original implementation of java.util.UUID but is quite useful.

http://www.2ality.com/2009/01/uuids-for-gwt.html