下面是我使用反射调用方法的代码,但我总是遇到异常
List<PdAttrKey> attrKeys = new ArrayList<PdAttrKey>();
Properties adapterProps = new Properties();
PdReadRequest pdReadRequest = new PdReadRequest(1L, 1L, (short) 0, new Date(),
dataDurationSec, 2L, 3L, attrKeys, null, adapterProps);
PdAdapterUserReadOnlyGemsReader adapter1 = new PdAdapterUserReadOnlyGemsReader();
PdReader reader = adapter1.acquireReader(pdReadRequest);
UserCacheDoImpl userDos = Some Value;
Method method = getClassMethod("createPdRecordFromUserDO");
// This line is throwing me exception. And I don't know why?
PdRecord onePdsxRecord = (PdRecord) method.invoke(reader, userDos);
这是下面的方法,我从中获取一个类的所有方法名称。
private Method getClassMethod(String methodName) {
Method method = null;
Method[] methodList = PdAdapterUserReadOnlyGemsReader.PdUserReadOnlyGemsReader.class
.getDeclaredMethods();
for (Method m : methodList) {
if (m.getName().equals(methodName)) {
method = m;
method.setAccessible(true);
break;
}
}
return method;
}
更多代码:-
private PdRecord createPdRecordFromUserDO(UserCacheDoImpl userCache) {
// Some code here
}
这是我得到的例外。知道为什么吗?
java.lang.IllegalArgumentException: argument type mismatch
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:599)
任何建议都会有很大帮助。