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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
来源: 互联网 发布时间:2015-09-09
本文导语: 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 = conn...
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);
}
}
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);
}
}
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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。。。。。。。
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。。。。。。。
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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。
有些类的方法也增加了,你看一看出错信息就知道了。
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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
至少setHoldability是jdk1.4以后才有的,所以在1.3.1下是不行的