动态根据实体类的属性获取和设置属性值

//根据字段获取其对应的值，javaName属性名，obj实体类

public String getValByJavaName(String javaName,Object obj){

String firstLetter = javaName.substring(0, 1).toUpperCase();

String getMethodName = "get" + firstLetter + javaName.substring(1);

String val = null;

try {

Method m = obj.getClass().getMethod(getMethodName);

val = (String) m.invoke(obj,null);

} catch (Exception e) {

e.printStackTrace();

}

return val;

}

//根据属性赋值，javaName属性名，value属性值，obj实体类

public Object setValByJavaName(String javaName,String value,Object obj){

Class c = obj.getClass();

try {

Field f =c.getDeclaredField(javaName);

// 取消语言访问检查

f.setAccessible(true);

//给变量赋值

f.set(obj, value);

} catch (Exception e) {

e.printStackTrace();

}

return obj;

}