package com.yonyou.cpu.purorder.launcher;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Map;
import org.springframework.util.StringUtils;
public class TestDate {
/**
* Description: 获取修改内容
*/
public static String packageModifyContent(Object source, Object target) {
StringBuffer modifyContent = new StringBuffer();
if(null == source || null == target) {
return "";
}
//取出source类
Class<?> sourceClass = source.getClass();
Field[] sourceFields = sourceClass.getDeclaredFields();
for(Field srcField : sourceFields) {
String srcName = srcField.getName();
//获取srcField值
String srcValue = getFieldValue(source, srcName) == null ? "" : getFieldValue(source, srcName).toString();
//获取对应的targetField值
String targetValue = getFieldValue(target, srcName) == null ? "" : getFieldValue(target, srcName).toString();
if(StringUtils.isEmpty(srcValue) && StringUtils.isEmpty(targetValue)) {
continue;
}
if(!srcValue.equals(targetValue)) {
modifyContent.append(srcName + "由‘" + targetValue + "’修改为‘" + srcValue + "’;");
}
}
return modifyContent.toString();
}
/**
* Description: 获取Obj对象的fieldName属性的值
*/
private static Object getFieldValue(Object obj, String fieldName) {
Object fieldValue = null;
if(null == obj) {
return null;
}
Method[] methods = obj.getClass().getDeclaredMethods();
for (Method method : methods) {
String methodName = method.getName();
if(!methodName.startsWith("get")) {
continue;
}
if(methodName.startsWith("get") && methodName.substring(3).toUpperCase().equals(fieldName.toUpperCase())) {
try {
fieldValue = method.invoke(obj, new Object[] {});
} catch (Exception e) {
System.out.println("取值出错,方法名 " + methodName);
continue;
}
}
}
return fieldValue;
}
}
转载自:https://blog.youkuaiyun.com/lixingtao0520/article/details/77149079