在 Google App-Engine JAVA 中将文本转换为字符串,反之亦然

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时间:2020-08-13 13:15:35  来源:igfitidea点击:

Converting Text to String and vise-versa in Google App-Engine JAVA

javagoogle-app-engine

提问by Manjoor

How can one convert from String to Text

如何从字符串转换为文本

java.lang.String

to

com.google.appengine.api.datastore.Text;

and vise-versa?

反之亦然?

采纳答案by 0x2D9A3

Check Javadocabout Textclass. It has two methods: toString()and getValue(). But toString()returns first 70 characters only.

检查关于类的JavadocText。它有两种方法:toString()getValue()。但只toString()返回前 70 个字符。

So, use getValue()instead:

因此,请getValue()改用:

String value = someText.getValue();

Contructor of the Textclass supports initialization with a string value. And (as Javadoc says), this object cannot be modified after construction.

Text类的构造函数支持使用字符串值进行初始化。并且(如 Javadoc 所说),该对象在构造后无法修改。