// 把JSON string 转化成类的对象
public static T bindModel(String content, Class cls) {
try {
JSONObject mjson = new JSONObject(content);
try {
T instance = cls.newInstance();
Iterator it = mjson.keys();
while (it.hasNext()) {
String next = it.next().toString();
ModelReflector.setProperty(instance, next, mjson.get(next)
.toString());
}
return instance;
} catch (IllegalAccessException e) {
} catch (InstantiationException e) {
}
} catch (JSONException e) {
}
return null;
}
// 按JavaBean模式修改对象的field值
public class ModelReflector {
public static Object setProperty(Object bean, String propertyName,
Object value) {
Class clazz = bean.getClass();
try {
Field field = clazz.getDeclaredField(propertyName);
Method method = clazz.getDeclaredMethod(
getSetterName(field.getName()),
new Class[] { field.getType() });
return method.invoke(bean, new Object[] { value });
} catch (Exception e) {
}
return null;
}
public static String getGetterName(String propertyName) {
String method = "get" + propertyName.substring(0, 1).toUpperCase()
+ propertyName.substring(1);
return method;
}
public static String getSetterName(String propertyName) {
String method = "set" + propertyName.substring(0, 1).toUpperCase()
+ propertyName.substring(1);
return method;
}
}
上面是通过发射方法修改对象的field，
能不能直接通过field.set(bean, value); 修改呢？
