是否可以通过在Apache Velocity中定义模板来生成Java代码？

Question

我需要使用Velocity Template概念生成Java文件。 请您指导一下。

Java代码应包含一些方法，导入和变量...

谢谢，伊斯瓦尔

Answer 1

对于Velocity / Java部分，您或多或少需要这样做：

// factory and an engine instance
VelocityEngineFactory velocityEngineFactory = new VelocityEngineFactory();
VelocityEngine engine = velocityEngineFactory.createVelocityEngine();
// now you need to give the variables you wanna have access from velocity script
VelocityContext context = new VelocityContext(properties);

ByteArrayOutputStream temp = new ByteArrayOutputStream();
BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(temp));
// generate the result, where scriptString is the velocity script
engine.evaluate(context, bufferedWriter, null, scriptString);
bufferedWriter.flush();
textResultant = temp.toString();

因此，您可以创建一个脚本，对其进行加载并以编程方式对其进行处理。