我用Java编写了一个Web服务,并且Web服务运行正常,但我无法弄清楚如何通过它传递自定义对象列表。这里是我的类对象:如何通过Web服务传递自定义对象
public class Contacts{
private int id;
private String username;
private String location;
private Date updated_at;
public void setId(int id) {
this.id = id;
}
public int getId() {
return id;
}
public void setUsername(String username) {
this.username = username;
}
public String getUsername() {
return username;
}
public void setLocation(String location) {
this.location = location;
}
public String getLocation() {
return location;
}
public void setUpdated_at(Date updated_at) {
this.updated_at = updated_at;
}
public Date getUpdated_at() {
return updated_at;
}
}
这里是我的web服务方法查询数据库,并返回对象的列表。每次我试图返回一个对象,我得到一个Axis2错误:[ERROR] org.apache.axis2.AxisFault: Mapping qname not fond for the package: wtp
总之,这里是我的方法:
public String getUsers()
{
ResultSet mainRS = null;
String username = "root";
String password = "ticket";
String tablename = "users";
String fieldname = "*";
String query = "SELECT " + fieldname + " FROM " + "android." + tablename + ";";
ArrayList<Contacts> lstc = new ArrayList<Contacts>();
/* this chnk of code can appear more or less verbatim */
/* in your database apps (including JSPs) */
String url = "jdbc:mysql://"my IP address":3306/android";
String test = " ";
try{
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection con = DriverManager.getConnection(url, username, password);
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery(query);
mainRS = rs;
while (rs.next()){
Contacts cont = new Contacts();
if (!(rs.getString("username") == null)){
cont.setUsername(rs.getString("username"));
test = rs.getString("username");
}
if (!(rs.getString("location") == null)){
cont.setLocation(rs.getString("location"));
}
if (!(rs.getString("updated_at") == null)){
cont.setUpdated_at(rs.getDate("updated_at"));
}
if (!(rs.getString("idUsers") == null)){
cont.setId(rs.getInt("idUsers"));
}
lstc.add(cont);
}
rs.close();
stmt.close();
con.close();
}catch(Exception e){
test = e.toString();
}
return test;
}
我使用Eclipse伽利略,Axis2的Java编写的。任何想法如何传递这些对象将不胜感激。或者,也许,甚至有更好的方法来做到这一点,然后低音自定义对象。我愿意接受任何想法。
谢谢!
编辑:我编辑使用的方法:
Contacts lst[] = new Contacts["count rows here"];
但是,它将返回空对象。例如:
有4行中的数据库中,以便其结果是:
SoapObject:结果:空,结果是:空,结果是:空,结果是:空]
任何想法?
我编辑上面的帖子与代码似乎让我更接近结果..但是,无论如何,我收到空值。 – ninnemannk 2011-02-06 17:59:58