在jdk1.4下编译成功，在1.3.1下，就有问题，谁能帮助我？高分相送

[倪大爺爺]

代码如下:

package database;

import java.sql.*;
import java.util.Map;

public class ConnectionAdapter implements Connection {

protected Connection connection;

public ConnectionAdapter(Connection connection) {
this.connection = connection;
}

public void close() throws SQLException {
connection.close();
}

public String toString() {
return connection.toString();
}

public void setHoldability(int holdability) throws SQLException {
connection.setHoldability(holdability);
}
public int getHoldability() throws SQLException{
return connection.getHoldability();
}
public Savepoint setSavepoint() throws SQLException{
return connection.setSavepoint();
}
public Savepoint setSavepoint(String name) throws SQLException{
return connection.setSavepoint(name) ;
}
public void rollback(Savepoint savepoint)
throws SQLException{
connection.rollback(savepoint);
}
public void releaseSavepoint(Savepoint savepoint)
throws SQLException{
connection.releaseSavepoint(savepoint);
}

public Statement createStatement(int resultSetType,
int resultSetConcurrency,
int resultSetHoldability)
throws SQLException{
return connection.createStatement(resultSetType,resultSetConcurrency,resultSetHoldability);
}
public PreparedStatement prepareStatement(String sql,
int resultSetType,
int resultSetConcurrency,
int resultSetHoldability)
throws SQLException{
return connection.prepareStatement(sql,resultSetType,resultSetConcurrency,resultSetHoldability);
}

public CallableStatement prepareCall(String sql,
int resultSetType,
int resultSetConcurrency,
int resultSetHoldability)
throws SQLException {
return connection.prepareCall(sql,resultSetType,resultSetConcurrency,resultSetHoldability);
}

public PreparedStatement prepareStatement(String sql,
int resultSetConcurrency)
throws SQLException{
return connection.prepareStatement(sql,resultSetConcurrency);
}


public PreparedStatement prepareStatement(String sql,
int[] columnIndexes)
throws SQLException{
return connection.prepareStatement(sql,columnIndexes);
}

public PreparedStatement prepareStatement(String sql,
String[] columnNames)
throws SQLException{
return connection.prepareStatement(sql,columnNames);
}


public Statement createStatement() throws SQLException {
return connection.createStatement();
}

public PreparedStatement prepareStatement(String sql) throws SQLException {
return connection.prepareStatement(sql);
}

public CallableStatement prepareCall(String sql) throws SQLException {
return connection.prepareCall(sql);
}

public String nativeSQL(String sql) throws SQLException {
return connection.nativeSQL(sql);
}

public void setAutoCommit(boolean autoCommit) throws SQLException {
connection.setAutoCommit(autoCommit);
}

public boolean getAutoCommit() throws SQLException {
return connection.getAutoCommit();
}

public void commit() throws SQLException {
connection.commit();
}

public void rollback() throws SQLException {
connection.rollback();
}

public boolean isClosed() throws SQLException {
return connection.isClosed();
}

public DatabaseMetaData getMetaData() throws SQLException {
return connection.getMetaData();
}

public void setReadOnly(boolean readOnly) throws SQLException {
connection.setReadOnly(readOnly);
}

public boolean isReadOnly() throws SQLException {
return connection.isReadOnly();
}

public void setCatalog(String catalog) throws SQLException {
connection.setCatalog(catalog);
}

public String getCatalog() throws SQLException {
return connection.getCatalog();
}

public void setTransactionIsolation(int level) throws SQLException {
connection.setTransactionIsolation(level);
}

public int getTransactionIsolation() throws SQLException {
return connection.getTransactionIsolation();
}

public SQLWarning getWarnings() throws SQLException {
return connection.getWarnings();
}

public void clearWarnings() throws SQLException {
connection.clearWarnings();
}

public Statement createStatement(int resultSetType, int resultSetConcurrency)
throws SQLException
{
return connection.createStatement(resultSetType, resultSetConcurrency);
}

public PreparedStatement prepareStatement(String sql, int resultSetType,
int resultSetConcurrency) throws SQLException
{
return connection.prepareStatement(sql, resultSetType, resultSetConcurrency);
}

public CallableStatement prepareCall(String sql, int resultSetType,
int resultSetConcurrency) throws SQLException
{
return connection.prepareCall(sql, resultSetType, resultSetConcurrency);
}

public Map getTypeMap() throws SQLException {
return connection.getTypeMap();
}

public void setTypeMap(Map map) throws SQLException {
connection.setTypeMap(map);
}
}

[xiaoqiushui]

jdk1.4的java.sql.*包中的类库比jdk1.3的多了几个类文件，
有些类的方法也增加了，你看一看出错信息就知道了。

[littlecong]

大体看了一下
至少setHoldability是jdk1.4以后才有的，所以在1.3.1下是不行的

[xiao_yuer]

当然在jdk1.3.1不能编译通过了，因为你用了很多从1.4才开始发布使用的接口或接口方法.
如：
Interface Savepoint
connection.setHoldability(holdability)
connection.getHoldability()
connection.setSavepoint();
connection.createStatement(resultSetType,resultSetConcurrency,resultSetHoldability)
......
......
既然你用到了jdk1.4中才发布的接口和方法，jdk1.3.1中都没有这些接口、类、方法的定义，怎么能编译通过？！
所以你只能在jdk1.4中使用你这段程序。。。。。。。

[beming]

只能改程序啦