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用Java实现可保存状态的数据库生成XML树（7） |
6.3.源码
6.3.1.ResultEdit SessionBean源码和相关文件
1.远程接口文件,ResultEdit.java
package com.sitechasia.ejb;
import java.rmi.*;
import javax.ejb.*;
import java.io.*;
import javax.sql.RowSet;
import java.sql.SQLException;
public interface ResultEdit extends EJBObject {
public RowSet getRowSet() throws RemoteException , SQLException ;
public RowSet setRowSet(String sqlExp) throws RemoteException , SQLException ;
}
2.Home接口文件 ResultEditHome.java
package com.sitechasia.ejb;
import java.rmi.*;
import javax.ejb.*;
import java.io.*;
import java.util.HashMap;
public interface ResultEditHome extends EJBHome {
public ResultEdit create() throws RemoteException, CreateException;
public ResultEdit create(HashMap startingCart) throws RemoteException, CreateException;
}
3.Bean类 ResultEditBean.java
package com.sitechasia.ejb;
import java.rmi.*;
import javax.ejb.*;
import java.io.*;
import java.sql.*;
import javax.sql.*;
import sun.jdbc.rowset.*;
import javax.sql.DataSource;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.util.HashMap;
public class ResultEditBean implements SessionBean {
private SessionContext sessionContext;
public int id;
public String name;
private CachedRowSet crset=null;
private HashMap cart;
private Context ctx = null;
private DataSource ds = null;
public ResultEditBean() {
cart = new HashMap();
}
public void ejbCreate() {
try {
cart = new HashMap();
ctx = new InitialContext();
ds = (DataSource)ctx.lookup("java:comp/env/imis");
}
catch (Exception e) {
System.out.println("ejbCreate failed:"+e.getMessage());
e.printStackTrace();
}
}
public void ejbCreate(HashMap starting) {
try {
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