用JAVA Bean 反射得到set,get方法
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- @SuppressWarnings("unchecked")
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- public static Method getGetMethod(Class objectClass, String fieldName) {
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- StringBuffer sb = new StringBuffer();
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- sb.append("get");
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- sb.append(fieldName.substring(0, 1).toUpperCase());
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- sb.append(fieldName.substring(1));
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- try {
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- return objectClass.getMethod(sb.toString());
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- } catch (Exception e) {
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- }
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- return null;
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- }
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- @SuppressWarnings("unchecked")
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- public static Method getSetMethod(Class objectClass, String fieldName) {
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- try {
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- Class[] parameterTypes = new Class[1];
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- Field field = objectClass.getDeclaredField(fieldName);
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- parameterTypes[0] = field.getType();
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- StringBuffer sb = new StringBuffer();
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- sb.append("set");
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- sb.append(fieldName.substring(0, 1).toUpperCase());
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- sb.append(fieldName.substring(1));
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- Method method = objectClass.getMethod(sb.toString(), parameterTypes);
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- return method;
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- } catch (Exception e) {
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- e.printStackTrace();
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- }
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- return null;
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- }
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- public static void invokeSet(Object o, String fieldName, Object value) {
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- Method method = getSetMethod(o.getClass(), fieldName);
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- try {
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- method.invoke(o, new Object[] { value });
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- } catch (Exception e) {
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- e.printStackTrace();
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- }
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- }
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- public static Object invokeGet(Object o, String fieldName) {
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- Method method = getGetMethod(o.getClass(), fieldName);
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- try {
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- return method.invoke(o, new Object[0]);
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- } catch (Exception e) {
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- e.printStackTrace();
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- }
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- return null;
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- }