java 如何从对象中提取数据？
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How to extract data from object?
提问by user1671219
[56, SensIOP, 9, Open Point] - Index 0
[562, SensIOP, 92, Open Point2] - Index 1
This is my object I am getting from the database call.I am iterating over the list to get this ,now my question here is 1st and 3rd field are long and others are string , how can I extract this from the object , to assign it to some variable.
这是我从数据库调用中获取的对象。我正在遍历列表以获取此对象，现在我的问题是第一个和第三个字段是长字段，其他字段是字符串，我如何从对象中提取它并分配它到一些变量。
Update :
更新 ：
Object object = (Object) iterator.next();
This object has the value set one (Index 0 )(It's in for loop)
此对象的值设置为一（索引 0 ）（在 for 循环中）
Update 2 :
更新2：
for (Iterator iterator = List2.iterator(); iterator.hasNext();) {
Object object = (Object) iterator.next();
回答by subodh
回答by jainvikram444
using this function you can get result :
String a1= arrayname[0] ; //[56, SensIOP, 9, Open Point]
a1=split(',',a1);
String Fisrtval=a1[0];
String Thirdtval=a1[2];
Please refer : http://docs.jboss.org/hibernate/orm/3.6/javadocs/org/hibernate/util/StringHelper.html#split(java.lang.String, java.lang.String)
请参考：http: //docs.jboss.org/hibernate/orm/3.6/javadocs/org/hibernate/util/StringHelper.html#split(java.lang.String , java.lang.String)
回答by RAS
I don't know how you're fetching data, but when I get data in the format specified by you, I do the following:
我不知道您是如何获取数据的，但是当我以您指定的格式获取数据时，我会执行以下操作：
List<Object[]> objects = query.list();
if (objects.size() > 0) {
for (int j = 0; j < objects.size(); j++) {
Object[] object = objects.get(j);
BigInteger firstValue = (BigInteger) object[0];
String secondValue = (String) object[1];
BigInteger thirdValue = (BigInteger) object[2];
String forthValue = (String) object[3];
long firstValueLong = firstValue.longValue();
long thirdValueLong = thirdValue.longValue();
}
}
回答by Ravinath
I found the result with the help of 'RAS' post its works greate thanks
我在“RAS”的帮助下找到了结果，非常感谢
List<Object> resultList =(List<Object>) em.createNativeQuery("SELECT isbillpayable,isothracctrfable FROM usrfacaccounts ").getResultList();
for (Iterator<Object> it = resultList.iterator(); it.hasNext();) {
Object[] object = (Object[]) it.next();
String firstValue = (String) object[0];
System.out.println("isbillpayable"+firstValue);
}
