com.hframework.common.util.BeanUtils Maven / Gradle / Ivy
package com.hframework.common.util;
import org.apache.commons.beanutils.ConvertUtils;
import org.apache.commons.beanutils.converters.DateConverter;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.*;
public class BeanUtils {
private static Log log = LogFactory.getLog(BeanUtils.class);
static {
//cause by : org.apache.commons.beanutils.ConversionException: No value specified for 'Date'
ConvertUtils.register(new DateConverter(null), java.util.Date.class);
}
/**
* 得到fields的属性
*
* @param objClass 当前对象的Class对象
* @return Map 对象属性地图(属性名称，属性类型)
*/
public static Map getFilds(Class objClass) {
Map map = null;
try {
// 得到所有的属性
Field[] fields = objClass.getDeclaredFields();
int size = fields.length;
if (size > 0) {
map = new HashMap();
for (int i = 0; i < size; i++) {
map.put(fields[i].getName(), fields[i].getType());
}
}
} catch (Exception e) {
e.printStackTrace();
}
return map;
}
/**
* 得到所有Method对照Map
*
* @param objClass 当前对象的Class对象
* @return Map 对象方法地图(方法名，方法)
*/
public static Map getMethods(Class objClass) {
Map map = null;
try {
// 得到所有的方法
Method[] methods = objClass.getDeclaredMethods();
int size = methods.length;
if (size > 0) {
map = new HashMap();
for (int i = 0; i < size; i++) {
map.put(methods[i].getName(), methods[i]);
}
}
} catch (Exception e) {
e.printStackTrace();
}
return map;
}
public static T convertObject(Class objClass, Object obj1) {
try {
Class cla = Class.forName(objClass.getName());
Object obj = cla.newInstance();
org.apache.commons.beanutils.BeanUtils.copyProperties(obj, obj1);
return (T) obj;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static Map parsePropertiesMap(Object obj) {
Map parmMap = new HashMap();
// 属性的名称及类型
Field[] fileds = obj.getClass().getDeclaredFields();
try {
for (Field field : fileds) {
// 属性名称
String filedName = field.getName();
field.setAccessible(true);
;
parmMap.put(filedName,field.get(obj) != null ? field.get(obj) : null);
}
} catch (Exception e) {
e.printStackTrace();
}
return parmMap;
}
public static void convertObject(Object obj, Object obj1) {
// 属性的名称及类型
Map fileds = getFilds(obj1.getClass());
// 方法名称及方法
Map methods = getMethods(obj1.getClass());
try {
for (Iterator it = fileds.entrySet().iterator(); it.hasNext(); ) {
Map.Entry entry = (Map.Entry) it.next();
// 属性名称
String filed = (String) entry.getKey();
// 转换成SET方法(首字母大写)
StringBuffer sub = new StringBuffer("set");
sub.append(StringUtils.upperCaseFirstChar(filed));
// 获取SET方法
Method setMethod = (Method) methods.get(sub.toString());
// 转换成GET方法(首字母大写)
StringBuffer gub = new StringBuffer("get");
gub.append(StringUtils.upperCaseFirstChar(filed));
// 获取GET方法
Method getMethod = (Method) methods.get(gub.toString());
if (setMethod != null && getMethod != null) {
// 从baseForm中取出对应的值
Object temp = getMethod.invoke(obj1);
// 注入到对象中相应的属性
if (temp != null) {
setMethod.invoke(obj, new Object[]{temp});
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
public static Map convertMap(Object obj, boolean bool) {
Map parmMap = new HashMap();
// 属性的名称及类型
Field[] fileds = obj.getClass().getDeclaredFields();
try {
for (Field field : fileds) {
// 属性名称
String filedName = field.getName();
field.setAccessible(true);
;
parmMap.put(filedName,field.get(obj) != null ? String.valueOf(field.get(obj)) : null);
}
} catch (Exception e) {
e.printStackTrace();
}
return parmMap;
}
public static Map convertMapAndFormat(Object obj, boolean bool) {
Map parmMap = new HashMap();
// 属性的名称及类型
Field[] fileds = obj.getClass().getDeclaredFields();
try {
for (Field field : fileds) {
// 属性名称
String filedName = field.getName();
field.setAccessible(true);
if(field.getType() == Date.class) {
parmMap.put(filedName,field.get(obj) != null ? DateUtils.getDateYYYYMMDDHHMMSS((Date) field.get(obj)) : null);
}else {
parmMap.put(filedName,field.get(obj) != null ? String.valueOf(field.get(obj)) : null);
}
}
} catch (Exception e) {
e.printStackTrace();
}
return parmMap;
}
public static String[] getPropertiesArray(Object obj) {
List result= new ArrayList();
Field[] fileds = obj.getClass().getDeclaredFields();
try {
for (Field field : fileds) {
// 属性名称
field.setAccessible(true);
result.add(String.valueOf(field.get(obj)));
}
} catch (Exception e) {
e.printStackTrace();
}
return result.toArray(new String[0]);
}
/**
* 得到所有Method及返回值对照Map
*
* @param objClass 当前对象的Class对象
* @return Map 对象方法地图(返回类型,方法)
*/
public static Map getMethodsReturn(Class objClass) {
Map map = null;
try {
// 得到所有的方法
Method[] methods = objClass.getDeclaredMethods();
int size = methods.length;
if (size > 0) {
map = new HashMap();
for (int i = 0; i < size; i++) {
map.put(methods[i].getReturnType(), methods[i]);
}
}
} catch (Exception e) {
e.printStackTrace();
}
return map;
}
/**
* 将对象的属性转换成为对象相应方法的名称(转换在get方法名，类型)
*/
public static Map getFildsToSetName(Class objClass) {
Map maps = null;
Map map = getFilds(objClass);
if (map != null) {
maps = new HashMap();
for (Iterator it = map.entrySet().iterator(); it.hasNext(); ) {
Map.Entry entry = (Map.Entry) it.next();
StringBuffer sub = new StringBuffer("set");
String str = (String) entry.getKey();
str = StringUtils.upperCaseFirstChar(str);
sub.append(str);
maps.put(sub.toString(), entry.getValue());
}
}
return maps;
}
}