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[英]NoSuchMethodError: javassist.CtClass.getDeclaredClasses()
[英]how to export Javassist CtClass to file
我嘗試使用javassist CtClass將動態創建的類導出到文件。 我的代碼如下:
public Class generate() throws NotFoundException,
CannotCompileException {
ClassPool pool = ClassPool.getDefault();
CtClass targetClass = pool.makeClass("ExampleController");
// make class fields
Iterator i = fields.iterator();
while (i.hasNext()) {
ClassFIeldProperty fieldProperty = (ClassFIeldProperty) i.next();
CtClass fieldStoringType = pool.makeClass(fieldProperty.getStoringType().getName());
Initializer fieldValue = CtField.Initializer.byNew(pool.makeClass(fieldStoringType.getName()));
String fieldName = fieldProperty.getName();
AnnotationsAttribute annotation = fieldProperty.getAnnotationAttribute();
CtField field = new CtField(fieldStoringType, fieldName, targetClass);
field.getFieldInfo().addAttribute(annotation);
targetClass.addField(field,fieldValue);
}
// now we have class with some fields
Class classWithFields = targetClass.toClass();
如何使用類定義將classWithFields導出並保存到文件(ExampleController.java)
// code likes:
File sourceFile = new File("/temp/ExampleController.java");
try (FileWriter writer = new FileWriter(sourceFile)) {
writer.write(classWithFields.toString());
}
// doesnt work - file not appear
嘗試使用以下代碼:
DataOutputStream out = new DataOutputStream(new FileOutputStream("WelcomeController2.java"));
targetClass.getClassFile().write(out);
並檢查目錄:
C:\Users\UserAcccountName\AppData\Roaming\NetBeans\8.0\config\GF_4.0\domain1\config
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