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聽聽浠g爜:
聽聽聽聽 case Types.LONGVARCHAR:
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.StringReader long_var =
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 new java.io.StringReader(oldval.toString());
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 stmt.setCharacterStream(pos,long_var,32768);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 return;
聽聽聽聽聽聽聽聽聽聽聽 case Types.LONGVARBINARY:
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.File os_file = new java.io.File(oldval.toString());
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 if (os_file.exists() && os_file.isFile() && os_file.canRead())
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 try {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.FileInputStream long_bin =
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 new java.io.FileInputStream(os_file);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 stmt.setBinaryStream(pos,long_bin,(int)(os_file.length()));
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 } catch (java.io.IOException ioe) {}
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 else
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 stmt.setNull(pos,1);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 return;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 __________________
聽聽

聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 濡備綍鎿嶄綔BLOB/CLOB綾誨瀷
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 ============================
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 鎿嶄綔blob/clob鏃訛紝鍏堢敤select lobfld from tab where ... for
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 update錛屽彇寰梛ava.sql.Blob鎴杍avq.sql.Clob綾誨瀷


聽聽浠g爜:
聽聽stmt = prepareStatement(Database,p_query,variable_table);
聽聽聽聽聽聽聽聽聽聽聽 stmt.bind(variable_table);
聽聽聽聽聽聽聽聽聽聽聽 rset = stmt.stmt.executeQuery();
聽聽聽聽聽聽聽聽聽聽聽 java.sql.ResultSetMetaData rsetmeta = rset.getMetaData();
聽聽聽聽聽聽聽聽聽聽聽 if (rset.next())
聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 if (rsetmeta.getColumnType(1) == java.sql.Types.CLOB)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.sql.Clob clob = rset.getClob(1);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long offs = 0;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 if (clob != null)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 char[] long_buf=new char[8192];
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 try {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 int len=0;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 clob.truncate(offs);聽聽聽
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.Writer long_out = clob.setCharacterStream(0);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.FileReader long_file = new java.io.FileReader(os_file);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 while((len = long_file.read(long_buf))>0)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_out.write(long_buf,0,len);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 offs = offs + len;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_file.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_out.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 catch ( java.io.IOException ioe)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 log.println(ioe.getMessage());
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 else if (rsetmeta.getColumnType(1) == java.sql.Types.BLOB)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.sql.Blob blob = rset.getBlob(1);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 if (blob != null)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 byte[] long_buf=new byte[8192];
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long offs = 0;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 try {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 int len=0;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 blob.truncate(offs);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.OutputStream long_out = blob.setBinaryStream(0);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.FileInputStream long_file = new java.io.FileInputStream(os_file);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 while((len = long_file.read(long_buf))>0)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_out.write(long_buf,0,len);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 offs = offs + len;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_file.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_out.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 catch ( java.io.IOException ioe)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 log.println(ioe.getMessage());
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 data = getMessage(jdbc_cfg,"JDBC.COMMAND.COMPLETED");
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 log.println(data.getColumn(1));
聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽 else
聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 log.println("0 "+jdbc_cfg.getNLSString("JDBC.COMMAND.ROWSSELECTED"));
聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 __________________
聽聽聽聽聽聽
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 濡備綍璇誨彇long/longraw/blob/clob涓殑鏁版嵁錛?/p>

聽聽浠g爜:
聽聽聽聽 stmt = prepareStatement(Database,p_query,variable_table);
聽聽聽聽聽聽聽聽聽聽聽 stmt.bind(variable_table);
聽聽聽聽聽聽聽聽聽聽聽 rset = stmt.stmt.executeQuery();
聽聽聽聽聽聽聽聽聽聽聽 java.sql.ResultSetMetaData rsetmeta = rset.getMetaData();
聽聽聽聽聽聽聽聽聽聽聽 if (rset.next())
聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 if (rsetmeta.getColumnType(1) == java.sql.Types.LONGVARCHAR)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.Reader long_out = rset.getCharacterStream(1);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 if (long_out != null)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 char[] long_buf=new char[8192];
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 try {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 int len=0;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.FileWriter long_file = new java.io.FileWriter(os_file);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 while((len = long_out.read(long_buf))>0)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_file.write(long_buf,0,len);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_file.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_out.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 catch ( java.io.IOException ioe)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 log.println(ioe.getMessage());
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 else if (rsetmeta.getColumnType(1) == java.sql.Types.LONGVARBINARY)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.InputStream long_out = rset.getBinaryStream(1);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 if (long_out != null)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 byte[] long_buf=new byte[8192];
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 try {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 int len=0;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.FileOutputStream long_file = new java.io.FileOutputStream(os_file);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 while((len = long_out.read(long_buf))>0)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_file.write(long_buf,0,len);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_file.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_out.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 catch ( java.io.IOException ioe)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 log.println(ioe.getMessage());
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 else if (rsetmeta.getColumnType(1) == java.sql.Types.CLOB)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.sql.Clob clob = rset.getClob(1);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 if (clob != null)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.Reader long_out = clob.getCharacterStream();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 if (long_out != null)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 char[] long_buf=new char[8192];
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 try {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 int len=0;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.FileWriter long_file = new java.io.FileWriter(os_file);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 while((len = long_out.read(long_buf))>0)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_file.write(long_buf,0,len);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_file.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_out.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 catch ( java.io.IOException ioe)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 log.println(ioe.getMessage());
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 else if (rsetmeta.getColumnType(1) == java.sql.Types.BLOB)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.sql.Blob blob = rset.getBlob(1);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 if (blob != null)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.InputStream long_out = blob.getBinaryStream();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 if (long_out != null)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 byte[] long_buf=new byte[8192];
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 try {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 int len=0;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 java.io.FileOutputStream long_file = new java.io.FileOutputStream(os_file);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 while((len = long_out.read(long_buf))>0)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_file.write(long_buf,0,len);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_file.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 long_out.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 catch ( java.io.IOException ioe)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 log.println(ioe.getMessage());
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 data = getMessage(jdbc_cfg,"JDBC.COMMAND.COMPLETED");
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 log.println(data.getColumn(1));
聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽 else
聽聽聽聽聽聽聽聽聽聽聽 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 log.println("0 "+jdbc_cfg.getNLSString("JDBC.COMMAND.ROWSSELECTED"));
聽聽聽聽聽聽聽聽聽聽聽 }
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 __________________



濂囧 2006-05-08 16:54 鍙戣〃璇勮
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Java鐨勮緭鍏ヨ緭鍑烘祦http://www.shnenglu.com/jjbird/articles/6760.html濂囧濂囧Mon, 08 May 2006 08:52:00 GMThttp://www.shnenglu.com/jjbird/articles/6760.htmlhttp://www.shnenglu.com/jjbird/comments/6760.htmlhttp://www.shnenglu.com/jjbird/articles/6760.html#Feedback0http://www.shnenglu.com/jjbird/comments/commentRss/6760.htmlhttp://www.shnenglu.com/jjbird/services/trackbacks/6760.html

Java璇█鐨勮緭鍏ヨ緭鍑哄姛鑳芥槸鍗佸垎寮哄ぇ鑰岀伒媧葷殑錛岀編涓笉瓚崇殑鏄湅涓婂幓杈撳叆杈撳嚭鐨勪唬鐮佸茍涓嶆槸寰堢畝媧侊紝鍥犱負浣犲線寰闇瑕佸寘瑁呰澶氫笉鍚岀殑瀵硅薄銆傚湪Java綾誨簱涓紝IO閮ㄥ垎鐨勫唴瀹規(guī)槸寰堝簽澶х殑錛屽洜涓哄畠娑夊強鐨勯鍩熷緢騫挎硾:鏍囧噯杈撳叆杈撳嚭錛屾枃浠剁殑鎿嶄綔錛岀綉緇滀笂鐨勬暟鎹祦錛屽瓧絎︿覆嫻侊紝瀵硅薄嫻侊紝zip鏂囦歡嫻?...鏈枃鐨勭洰鐨勬槸涓哄ぇ瀹跺仛涓涓畝瑕佺殑浠嬬粛銆?/p>

銆銆嫻佹槸涓涓緢褰㈣薄鐨勬蹇碉紝褰撶▼搴忛渶瑕佽鍙栨暟鎹殑鏃跺欙紝灝變細寮鍚竴涓氬悜鏁版嵁婧愮殑嫻侊紝榪欎釜鏁版嵁婧愬彲浠ユ槸鏂囦歡錛屽唴瀛橈紝鎴栨槸緗戠粶榪炴帴銆傜被浼肩殑錛屽綋紼嬪簭闇瑕佸啓鍏ユ暟鎹殑鏃跺欙紝灝變細寮鍚竴涓氬悜鐩殑鍦扮殑嫻併傝繖鏃跺欎綘灝卞彲浠ユ兂璞℃暟鎹ソ鍍忓湪榪欏叾涓滄祦鈥濆姩涓鏍鳳紝濡備笅鍥撅細


銆銆Java涓殑嫻佸垎涓轟袱縐嶏紝涓縐嶆槸瀛楄妭嫻侊紝鍙︿竴縐嶆槸瀛楃嫻侊紝鍒嗗埆鐢卞洓涓娊璞$被鏉ヨ〃紺猴紙姣忕嫻佸寘鎷緭鍏ュ拰杈撳嚭涓ょ鎵浠ヤ竴鍏卞洓涓級:InputStream錛孫utputStream錛孯eader錛學riter銆侸ava涓叾浠栧縐嶅鏍峰彉鍖栫殑嫻佸潎鏄敱瀹冧滑媧劇敓鍑烘潵鐨?



銆銆鍦ㄨ繖鍏朵腑InputStream鍜孫utputStream鍦ㄦ棭鏈熺殑Java鐗堟湰涓氨宸茬粡瀛樺湪浜嗭紝瀹冧滑鏄熀浜庡瓧鑺傛祦鐨勶紝鑰屽熀浜庡瓧絎︽祦鐨凴eader鍜學riter鏄悗鏉ュ姞鍏ヤ綔涓鴻ˉ鍏呯殑銆備互涓婄殑灞傛鍥炬槸Java綾誨簱涓殑涓涓熀鏈殑灞傛浣撶郴銆?/p>

銆銆鍦ㄨ繖鍥涗釜鎶借薄綾諱腑錛孖nputStream鍜孯eader瀹氫箟浜嗗畬鍏ㄧ浉鍚岀殑鎺ュ彛錛?/p>
int read錛堬級
int read錛?font color="#0000ff">char cbuf[]錛?br />int read錛?font color="#0000ff">char cbuf[], int offset, int length錛?/span>

銆銆鑰孫utputStream鍜學riter涔熸槸濡傛錛?/p>
int write錛?font color="#0000ff">int c錛?br />int write錛?font color="#0000ff">char cbuf[]錛?br />int write錛?font color="#0000ff">char cbuf[], int offset, int length錛?/span>

銆銆榪欏叚涓柟娉曢兘鏄渶鍩烘湰鐨勶紝read錛堬級鍜寃rite錛堬級閫氳繃鏂規(guī)硶鐨勯噸杞芥潵璇誨啓涓涓瓧鑺傦紝鎴栬呬竴涓瓧鑺傛暟緇勩?/p>

銆銆鏇村鐏墊椿澶氬彉鐨勫姛鑳芥槸鐢卞畠浠殑瀛愮被鏉ユ墿鍏呭畬鎴愮殑銆傜煡閬撲簡Java杈撳叆杈撳嚭鐨勫熀鏈眰嬈$粨鏋勪互鍚庯紝鏈枃鍦ㄨ繖閲屾兂緇欏ぇ瀹朵竴浜涗互鍚庡彲浠ュ弽澶嶅簲鐢ㄤ緥瀛愶紝瀵逛簬鎵鏈夊瓙綾葷殑緇嗚妭鍙婂叾鍔熻兘騫朵笉璇︾粏璁ㄨ銆?/p>

import java.io.*錛?/span>

    public class IOStreamDemo {

    聽聽聽聽聽聽public void samples錛堬級 throws IOException {

    聽聽聽聽聽聽聽聽聽聽聽//1. 榪欐槸浠庨敭鐩樿鍏ヤ竴琛屾暟鎹?榪斿洖鐨勬槸涓涓瓧絎︿覆
    聽聽聽聽聽聽聽聽聽聽聽BufferedReader stdin =new BufferedReader錛坣ew InputStreamReader錛圫ystem.in錛夛級錛?
    聽聽聽聽聽聽聽聽聽聽聽System.out.print錛?font color="#ff00ff">"Enter a line:"錛夛紱
    聽聽聽聽聽聽聽聽聽聽聽System.out.println錛坰tdin.readLine錛堬級錛夛紱

    聽聽聽聽聽聽聽聽聽聽聽//2. 榪欐槸浠庢枃浠朵腑閫愯璇誨叆鏁版嵁

    聽聽聽聽聽聽聽聽聽聽聽BufferedReader in = new BufferedReader錛?font color="#0000ff">new FileReader錛?font color="#ff00ff">"IOStreamDemo.java"錛夛級錛?br />聽聽聽聽聽聽聽聽聽聽聽String s, s2 = new String錛堬級錛?br />聽聽聽聽聽聽聽聽聽聽聽while錛堬紙s = in.readLine錛堬級錛?= null錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽s2 += s + "\n"錛?br />聽聽聽聽聽聽聽聽聽聽聽in.close錛堬級錛?br />

    聽聽聽聽聽聽聽聽聽聽聽//3. 榪欐槸浠庝竴涓瓧絎︿覆涓愪釜璇誨叆瀛楄妭
    聽聽聽聽聽聽聽聽聽聽聽StringReader in1 = new StringReader錛坰2錛夛紱
    聽聽聽聽聽聽聽聽聽聽聽int c錛?br />聽聽聽聽聽聽聽聽聽聽聽while錛堬紙c = in1.read錛堬級錛?!= -1錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽System.out.print錛堬紙char錛塩錛夛紱

    聽聽聽聽聽聽聽聽聽聽聽//4. 榪欐槸灝嗕竴涓瓧絎︿覆鍐欏叆鏂囦歡
    聽聽聽聽聽聽聽聽聽聽聽try {
    聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽BufferedReader in2 = new BufferedReader錛坣ew StringReader錛坰2錛夛級錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽PrintWriter out1 = new PrintWriter錛坣ew BufferedWriter錛坣ew FileWriter錛?font color="#ff00ff">"IODemo.out"錛夛級錛夛紱
    聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽int lineCount = 1錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽while錛堬紙s = in2.readLine錛堬級錛?!= null 錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽out1.println錛坙ineCount++ + ": " + s錛夛紱
    聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽out1.close錛堬級錛?br />聽聽聽聽聽聽聽聽聽聽聽} catch錛圗OFException e錛?{
    聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽System.err.println錛?font color="#ff00ff">"End of stream"錛夛紱
    聽聽聽聽聽聽聽聽聽聽聽}
    聽聽聽聽聽聽}

    }

銆銆瀵逛簬涓婇潰鐨勪緥瀛愶紝闇瑕佽鏄庣殑鏈変互涓嬪嚑鐐癸細

銆銆1. BufferedReader鏄?font color="#ff0000">Reader鐨勪竴涓瓙綾伙紝瀹冨叿鏈夌紦鍐茬殑浣滅敤錛岄伩鍏嶄簡棰戠箒鐨勪粠鐗╃悊璁懼涓鍙栦俊鎭傚畠鏈変互涓嬩袱涓瀯閫犲嚱鏁幫細

BufferedReader 錛?font color="#0000ff">Reader in錛?
BufferedReader錛?font color="#0000ff">Reader in, int sz錛?

銆銆榪欓噷鐨剆z鏄寚瀹氱紦鍐插尯鐨勫ぇ灝忋?/p>

銆銆瀹冪殑鍩烘湰鏂規(guī)硶錛?/p>
void close錛?/font>錛?//鍏抽棴嫻?

聽聽聽聽聽聽聽聽聽聽聽void mark錛坕nt readAheadLimit錛?font color="#006600"> //鏍囪褰撳墠浣嶇疆


聽聽聽聽聽聽聽聽聽聽聽boolean markSupported錛堬級 //鏄惁鏀寔鏍囪

聽聽聽聽聽聽聽聽聽聽聽int read錛堬級 //緇ф壙鑷猂eader鐨勫熀鏈柟娉?/font>

聽聽聽聽聽聽聽聽聽聽聽int read錛?font color="#0000ff">char
[] cbuf, int off,int len錛?//緇ф壙鑷猂eader鐨勫熀鏈柟娉?/font>

聽聽聽聽聽聽聽聽聽聽聽String readLine錛堬級 //璇誨彇涓琛屽唴瀹瑰茍浠ュ瓧絎︿覆褰㈠紡榪斿洖

聽聽聽聽聽聽聽聽聽聽聽boolean ready錛堬級 //鍒ゆ柇嫻佹槸鍚﹀凡緇忓仛濂借鍏ョ殑鍑嗗

聽聽聽聽聽聽聽聽聽聽聽void reset錛堬級 //閲嶈鍒版渶榪戠殑涓涓爣璁?/font>

聽聽聽聽聽聽聽聽聽聽聽long skip錛?font color="#0000ff">long
n錛?//璺寵繃鎸囧畾涓暟鐨勫瓧絎﹁鍙?/font>

銆銆2. InputStreamReader鏄?font color="#000000">InputStream鍜?font color="#000000">Reader涔嬮棿鐨勬ˉ姊侊紝鐢變簬System.in鏄瓧鑺傛祦錛岄渶瑕佺敤瀹冩潵鍖呰涔嬪悗鍙樹負瀛楃嫻佷緵緇?聽聽聽聽聽聽聽聽聽聽聽聽BufferedReader浣跨敤銆?br />

銆銆3. PrintWriter out1 = new PrintWriter錛?font color="#0000ff">new BufferedWriter錛?font color="#0000ff">new FileWriter錛?font color="#ff00ff">"IODemo.out"錛夛級錛夛紱

銆銆榪欏彞璇濅綋鐜頒簡Java杈撳叆杈撳嚭緋葷粺鐨勪竴涓壒鐐癸紝涓轟簡杈懼埌鏌愪釜鐩殑錛岄渶瑕佸寘瑁呭ソ鍑犲眰銆傞鍏堬紝杈撳嚭鐩殑鍦版槸鏂囦歡IODemo.out錛屾墍浠ユ渶鍐呭眰鍖呰鐨勬槸FileWriter錛屽緩绔嬩竴涓緭鍑烘枃浠舵祦錛屾帴涓嬫潵錛屾垜浠笇鏈涜繖涓祦鏄紦鍐茬殑錛屾墍浠ョ敤BufferedWriter鏉ュ寘瑁呭畠浠ヨ揪鍒扮洰鐨勶紝鏈鍚庯紝鎴戜滑闇瑕佹牸寮忓寲杈撳嚭緇撴灉錛屼簬鏄皢PrintWriter鍖呭湪鏈澶栧眰銆?br />

銆銆Java鎻愪緵浜嗚繖鏍蜂竴涓姛鑳斤紝灝嗘爣鍑嗙殑杈撳叆杈撳嚭嫻佽漿鍚戯紝涔熷氨鏄錛屾垜浠彲浠ュ皢鏌愪釜鍏朵粬鐨勬祦璁句負鏍囧噯杈撳叆鎴栬緭鍑烘祦錛岀湅涓嬮潰榪欎釜渚嬪瓙錛?/p>

import java.io.*錛?/span>

public class Redirecting {

聽聽聽聽聽聽聽public static void
main錛?font color="#0000ff">String[] args錛?throws IOException {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽PrintStream console = System.out錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽BufferedInputStream in = newBufferedInputStream錛?new FileInputStream錛?"Redirecting.java"錛夛級錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽PrintStream out = newPrintStream錛?new BufferedOutputStream錛?font color="#0000ff"> new FileOutputStream錛?font color="#ff00ff">"test.out"錛夛級錛夛紱
聽聽聽聽聽聽聽聽聽聽聽聽聽聽System.setIn錛坕n錛夛紱
聽聽聽聽聽聽聽聽聽聽聽聽聽聽System.setOut錛坥ut錛夛紱

聽聽聽聽聽聽聽聽聽聽聽聽聽聽BufferedReader br = newBufferedReader錛?newInputStreamReader錛圫ystem.in錛夛級錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽String s錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽while錛堬紙s = br.readLine錛堬級錛?!= null錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽System.out.println錛坰錛夛紱
聽聽聽聽聽聽聽聽聽聽聽聽聽聽out.close錛堬級錛?
聽聽聽聽聽聽聽聽聽聽聽聽聽聽System.setOut錛坈onsole錛夛紱
聽聽聽聽聽聽}
}

銆銆鍦ㄨ繖閲宩ava.lang.System鐨勯潤鎬佹柟娉?/p>
static void setIn錛圛nputStream in錛?
static void setOut錛圥rintStream out錛?

銆銆鎻愪緵浜嗛噸鏂板畾涔夋爣鍑嗚緭鍏ヨ緭鍑烘祦鐨勬柟娉曪紝榪欐牱鍋氭槸寰堟柟渚跨殑錛屾瘮濡備竴涓▼搴忕殑緇撴灉鏈夊緢澶氾紝鏈夋椂鍊欑敋鑷寵緲婚〉鏄劇ず錛岃繖鏍蜂笉渚夸簬瑙傜湅緇撴灉錛岃繖鏄綘灝卞彲浠ュ皢鏍囧噯杈撳嚭嫻佸畾涔変負涓涓枃浠舵祦錛岀▼搴忚繍琛屽畬涔嬪悗鎵撳紑鐩稿簲鐨勬枃浠惰鐪嬬粨鏋滐紝灝辯洿瑙備簡璁稿銆?/p>

銆銆Java嫻佹湁鐫鍙︿竴涓噸瑕佺殑鐢ㄩ旓紝閭e氨鏄埄鐢ㄥ璞℃祦瀵瑰璞¤繘琛屽簭鍒楀寲銆備笅闈㈠皢寮濮嬩粙緇嶈繖鏂歸潰鐨勯棶棰樸?/p>

銆銆鍦ㄤ竴涓▼搴忚繍琛岀殑鏃跺欙紝鍏朵腑鐨勫彉閲忔暟鎹槸淇濆瓨鍦ㄥ唴瀛樹腑鐨勶紝涓鏃︾▼搴忕粨鏉熻繖浜涙暟鎹皢涓嶄細琚繚瀛橈紝涓縐嶈В鍐崇殑鍔炴硶鏄皢鏁版嵁鍐欏叆鏂囦歡錛岃孞ava涓彁渚涗簡涓縐嶆満鍒訛紝瀹冨彲浠ュ皢紼嬪簭涓殑瀵硅薄鍐欏叆鏂囦歡錛屼箣鍚庡啀浠庢枃浠朵腑鎶婂璞¤鍑烘潵閲嶆柊寤虹珛銆傝繖灝辨槸鎵璋撶殑瀵硅薄搴忓垪鍖朖ava涓紩鍏ュ畠涓昏鏄負浜哛MI錛圧emote Method Invocation錛夊拰Java Bean鎵鐢紝涓嶈繃鍦ㄥ鉤鏃跺簲鐢ㄤ腑錛屽畠涔熸槸寰堟湁鐢ㄧ殑涓縐嶆妧鏈?/p>

銆銆鎵鏈夐渶瑕佸疄鐜板璞″簭鍒楀寲鐨勫璞″繀欏婚鍏堝疄鐜癝erializable鎺ュ彛銆備笅闈㈢湅涓涓緥瀛愶細

import java.io.*錛?br />import java.util.*錛?/span>

public class Logon implements Serializable {

聽聽聽聽聽聽聽private Date date = new Date錛堬級錛?br />聽聽聽聽聽聽聽private String username錛?br />聽聽聽聽聽聽聽private transient String password錛?/p>


聽聽聽聽聽聽聽Logon錛?font color="#0000ff">Stringname, String pwd錛?{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽username = name錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽password = pwd錛?br />聽聽聽聽聽聽聽}


聽聽聽聽聽聽聽public String toString錛堬級 {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽String pwd = 錛坧assword == null錛?? "錛坣/a錛? : password錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽return "logon info: \n " + "username: " + username + "\n date: " + date + "\n password: " + pwd錛?br />聽聽聽聽聽聽聽}


聽聽聽聽聽聽聽public static void
main錛?font color="#ff0000">String[] args錛?throws IOException, ClassNotFoundException {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽Logon a = new Logon錛?font color="#ff00ff">"Morgan", "morgan83"錛夛紱
聽聽聽聽聽聽聽聽聽聽聽聽聽聽System.out.println錛?"logon a = " + a錛夛紱
聽聽聽聽聽聽聽聽聽聽聽聽聽聽ObjectOutputStream o = newObjectOutputStream錛?newFileOutputStream錛?font color="#ff00ff">"Logon.out"錛夛級錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽o.writeObject錛坅錛夛紱
聽聽聽聽聽聽聽聽聽聽聽聽聽聽o.close錛堬級錛?/p>

聽聽聽聽聽聽聽聽聽聽聽聽聽聽int seconds = 5錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽long t = System.currentTimeMillis錛堬級聽+ seconds * 1000錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽while錛?font color="#ff0000">System.currentTimeMillis錛堬級 < t錛?錛?br />
聽聽聽聽聽聽聽聽聽聽聽聽聽聽ObjectInputStream in = new ObjectInputStream錛?newFileInputStream錛?font color="#ff00ff">"Logon.out"錛夛級錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽System.out.println錛?"Recovering object at " + new Date錛堬級錛夛紱
聽聽聽聽聽聽聽聽聽聽聽聽聽聽a = 錛圠ogon錛塱n.readObject錛堬級錛?br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽System.out.println錛?font color="#ff00ff">"logon a = " + a錛夛紱
聽聽聽聽聽聽聽}
}

銆銆綾籐ogon鏄竴涓褰曠櫥褰曚俊鎭殑綾伙紝鍖呮嫭鐢ㄦ埛鍚嶅拰瀵嗙爜銆傞鍏堝畠瀹炵幇浜嗘帴鍙erializable錛岃繖灝辨爣蹇楃潃瀹冨彲浠ヨ搴忓垪鍖栥備箣鍚庡啀main鏂規(guī)硶閲?font color="#ff0000">ObjectOutputStream o = newObjectOutputStream錛?newFileOutputStream錛?font color="#ff00ff">"Logon.out"錛夛級錛涙柊寤轟竴涓璞¤緭鍑烘祦鍖呰涓涓枃浠舵祦錛岃〃紺哄璞″簭鍒楀寲鐨勭洰鐨勫湴鏄枃浠禠ogon.out銆傜劧鍚庣敤鏂規(guī)硶writeObject寮濮嬪啓鍏ャ傛兂瑕佽繕鍘熺殑鏃跺欎篃寰堢畝鍗?font color="#ff0000">ObjectInputStream in = newObjectInputStream錛?newFileInputStream錛?font color="#ff00ff">"Logon.out"錛夛級錛涙柊寤轟竴涓璞¤緭鍏ユ祦浠ユ枃浠舵祦Logon.out涓哄弬鏁幫紝涔嬪悗璋冪敤readObject鏂規(guī)硶灝卞彲浠ヤ簡銆?/p>

銆銆闇瑕佽鏄庝竴鐐癸紝瀵硅薄搴忓垪鍖栨湁涓涓濂囦箣澶勫氨鏄紝瀹冨緩绔嬩簡涓寮犲璞$綉錛屽皢褰撳墠瑕佸簭鍒楀寲鐨勫璞′腑鎵鎸佹湁鐨勫紩鐢ㄦ寚鍚戠殑瀵硅薄閮藉寘鍚搗鏉ヤ竴璧峰啓鍏ュ埌鏂囦歡錛屾洿涓哄濡欑殑鏄紝濡傛灉浣犱竴嬈″簭鍒楀寲浜嗗ソ鍑犱釜瀵硅薄錛屽畠浠腑鐩稿悓鐨勫唴瀹瑰皢浼氳鍏變韓鍐欏叆銆傝繖鐨勭‘鏄竴涓潪甯稿ソ鐨勬満鍒躲傚畠鍙互鐢ㄦ潵瀹炵幇娣卞眰鎷瘋礉銆?/p>

銆銆鍏抽敭瀛梩ransient鍦ㄨ繖閲岃〃紺哄綋鍓嶅唴瀹瑰皢涓嶈搴忓垪鍖栵紝姣斿渚嬪瓙涓殑瀵嗙爜錛岄渶瑕佷繚瀵嗭紝鎵浠ユ病鏈夎鍐欏叆鏂?/p>



濂囧 2006-05-08 16:52 鍙戣〃璇勮
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java璇諱功絎旇錛堜簩錛?/title><link>http://www.shnenglu.com/jjbird/articles/2432.html</link><dc:creator>濂囧</dc:creator><author>濂囧</author><pubDate>Wed, 04 Jan 2006 09:54:00 GMT</pubDate><guid>http://www.shnenglu.com/jjbird/articles/2432.html</guid><wfw:comment>http://www.shnenglu.com/jjbird/comments/2432.html</wfw:comment><comments>http://www.shnenglu.com/jjbird/articles/2432.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/jjbird/comments/commentRss/2432.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/jjbird/services/trackbacks/2432.html</trackback:ping><description><![CDATA[<P>11銆佸啓java紼嬪簭鏃訛紝浣犻殢鏃跺彲浠ystem.out.println("things");鍙浣犳兂鎵撳嵃銆?BR>12銆丣DK:Java Developer's Kit<BR>13銆?A >http://www.bruceeckel.com/</A><BR>14銆乻dk瀹夎鍚庯紝瑕佽緗畃ath鍜宩ava_home鐜鍙橀噺<BR> Java 2鐜鍙橀噺鐨勮緗涓嬩緥鎵紺? <BR> Solaris騫沖彴: setenv JAVA_HOME Java2鐨勫畨瑁呰礬寰?<BR> setenv PATH $JAVA_HOME/bin:${PATH} <BR> Windows騫沖彴: set JAVA_HOME=Java2鐨勫畨瑁呰礬寰?<BR> set PATH=$JAVA_HOMEbin;%PATH% <BR>15銆乯avadoc榪欎釜鎻愬彇娉ㄩ噴鐨勫伐鍏鳳紝浼氳緭鍑篐TML鏂囦歡錛岃嚜鍔ㄧ敓鎴愪竴浠芥枃妗?BR>寮濮嬶細/**<BR>緇撴潫錛?/<BR>涓ょ鐢ㄦ硶錛氬祵鍏ュ紡鐨凥TML鍜岀敤鈥滄枃妗f爣璁癅(doc tags)鈥?BR>16銆佸璞$殑璧嬪鹼紝瀹為檯涓婃槸鍦ㄦ嫹璐濆畠鐨剅eference銆傚錛歯1=n2;榪欐椂n1銆乶2鎸囧悜鍚屼竴涓璞°傚師鍏堢殑reference琚鐩栵紝鎸囧悜鐨勫璞¤娓呴櫎銆傝繖縐嶇幇璞¤縐頒負aliasing錛堝埆鍚嶆晥搴旓級<BR>17銆佹鍒欒〃杈懼紡  -?\\d+  鈥滃墠闈㈠彲鑳芥湁涓涓噺鍙鳳紝鍚庨潰璺熺潃涓涓查樋鎷変集鏁板瓧鈥?BR>闃挎媺浼暟瀛楃敤鈥榎d鈥欒〃紺猴紝浣嗘槸蹇呴』鍐嶅姞涓涓弽鏂滄潬鎵嶈兘鎶婂畠杞箟涓轟竴涓弽鏂滄潬銆?BR>18銆乭ave a cookie銆傞掑榪愮畻絎︿篃鏄疌++鍛藉悕鐨勫師鍥犱箣涓錛屽畠鐨勫瘬鎰忔槸鈥滄瘮C鏇磋繘涓姝モ濓紝Bill Joy(Sun 鐨勫垱寤鴻呬箣涓錛夎錛屸渏ava=C++--鈥?浠栫殑鎰忔濇槸錛宩ava 鏄竴縐嶅幓闄や簡C++涓浣欑殑澶嶆潅鎬х殑璇█銆?BR>19銆?=銆?=姣旇緝鐨勬槸瀵硅薄鐨剅eference錛屽嵆浣垮璞$殑鍐呭鐩稿悓錛屼絾鏄痳eference鏄笉鍚岀殑璇濓紝姣旇緝涔熸槸涓嶇瓑鐨勩?BR>瑕佹兂姣旇緝涓や釜瀵硅薄鐨勫疄闄呭唴瀹癸紝鍙互鐢╡quals()鏂規(guī)硶銆備絾鏄浜庤嚜宸卞垱寤虹殑綾伙紝蹇呴』閲嶆柊澶嶅啓equals()錛屽洜涓哄畠鐨勭己鐪佽涓烘槸姣旇緝reference銆?BR>20銆佸鐞嗛昏緫榪愮畻絎︾殑鏃跺欎細紕板埌涓縐嶅彨鈥滅煭鎺モ濓紝鍙鑳藉噯紜殑鐭ラ亾鏁翠釜琛ㄨ揪寮忔槸鐪熸槸鍋囷紝灝辯珛鍒誨仛鍑哄垽鏂紝鏃犻渶璁$畻閫昏緫琛ㄨ揪寮忕殑鍚庡崐閮ㄥ垎銆?BR>21銆佸湪java閲岋紝鍞竴鑳芥斁鏍囩鐨勫湴鏂規(guī)槸鍦ㄥ驚鐜鍙ョ殑澶栭潰銆傝屼笖蹇呴』鐩存帴鏀鋸斺斿湪寰幆璇彞鍜屾爣絳句箣闂翠笉鑳芥湁浠諱綍涓滆タ銆俢ontinue label浼氬湪涓柇鍐呴儴寰幆鐨勫悓鏃朵腑鏂閮ㄥ驚鐜紝鍦ㄤ竴姘旈鍒發(fā)abel錛岀劧鍚庝粠澶村紑濮嬫墽琛屽驚鐜紝浣嗘槸榪欐鏄粠澶栭儴寮濮嬶紱break label涔熶細閫鍒發(fā)abel錛屼絾鏄畠涓嶄細鍦ㄨ繘鍏ュ驚鐜傚疄闄呬笂瀹冩槸鍚屾椂閫鍑轟袱涓驚鐜?BR></P><img src ="http://www.shnenglu.com/jjbird/aggbug/2432.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/jjbird/" target="_blank">濂囧</a> 2006-01-04 17:54 <a href="http://www.shnenglu.com/jjbird/articles/2432.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>java瀛︿範絎旇錛堜竴錛?/title><link>http://www.shnenglu.com/jjbird/articles/2428.html</link><dc:creator>濂囧</dc:creator><author>濂囧</author><pubDate>Wed, 04 Jan 2006 07:35:00 GMT</pubDate><guid>http://www.shnenglu.com/jjbird/articles/2428.html</guid><wfw:comment>http://www.shnenglu.com/jjbird/comments/2428.html</wfw:comment><comments>http://www.shnenglu.com/jjbird/articles/2428.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/jjbird/comments/commentRss/2428.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/jjbird/services/trackbacks/2428.html</trackback:ping><description><![CDATA[<P>1銆丱OP: 闈㈠悜瀵硅薄鐨勭紪紼?Object_Oriented Programming)<BR><BR>2銆佹娊璞$殑榪囩▼錛氬鏈哄櫒寤烘ā-銆夊闂寤烘ā-銆夐潰鍚戝璞$殑鏂規(guī)硶<BR>鏈哄櫒妯″瀷鈥滆В鍐崇┖闂粹濓紱寰呰В鍐崇殑闂鐨勬ā鍨嬧滈棶棰樼┖闂粹?BR><BR>3銆佹垜浠皢闂絀洪棿鐨勫厓绱犲悓瀹冨湪瑙e喅絀洪棿鐨勮〃榪扮О涓衡滃璞♀濄?BR>瀵硅薄鏈夌姸鎬併佽涓哄拰鏍囪瘑銆?BR><BR>4銆丠TML:HyperText Markup Language<BR><BR>5銆丆GI:閫氱敤緗戝叧鎺ュ彛(Common Gateway Interface)<BR><BR>6銆丼un Microsystems鐨凧ava璇█鍜岀被搴擄紙鍙粠java.sun.com鑷敱涓嬭澆錛変細闄勫甫涓浠藉彲浠ョ敤Web嫻忚鍣ㄩ槄璇葷殑鐢?shù)瀛愭枃妗c?BR><BR>7銆佹暟鎹瓨鍦ㄥ摢閲岋紵<BR>1)瀵勫瓨鍣?registers),榪欐槸鍙嶆槧鏈蹇殑瀛樺偍銆傚洜涓哄畠鐨勪綅緗湪瀛樺偍鍣ㄩ噷銆?BR>2)鏍堬紙stack),浣嶄簬甯歌鍐呭瓨鍖猴紝澶勭悊鍣ㄩ氳繃鏍堟寚閽堢洿鎺ヨ闂傛爤鎸囬拡鍚戜笅縐誨姩灝卞垱寤轟簡鏂扮殑瀛樺偍絀洪棿錛屽悜涓婄Щ鍔ㄥ氨閲婃斁鍐呭瓨絀洪棿銆俲ava鎶婃煇浜涙暟鎹紝鍒槸瀵硅薄鐨剅efernce瀛樻斁鍦ㄦ爤閲岋紝浣嗗璞℃湰韜茍娌℃湁鏀懼湪鏍堥噷銆?BR>3)鍫?heap),榪欐槸涓孌碘滃鐢ㄩ旂殑鍐呭瓨姹犫濓紝涔熷湪鍐呭瓨閲岄潰銆傛墍鏈塲ava瀵硅薄閮戒繚瀛樺湪榪欓噷銆傚垎閰嶅爢鐨勫瓨鍌ㄧ┖闂磋姣斿垎閰嶆爤鐨勬參涓浜涖俷ew鏉ュ垱寤恒?BR>4)闈欐佸瓨鍌?static storage),鈥滃湪鍥哄畾鐨勪綅緗濓紙灝界瀹冭繕鏄湪RAM閲岄潰錛夛紝鐢╯tatic鍏抽敭璇嶆潵鎸囨槑銆備絾java瀵硅薄鏈韓鏄粷涓嶄細鏀懼埌闈欐佸瓨鍌ㄤ腑鍘葷殑銆?BR>5)鍥哄畾瀛樺偍錛坈onstant storage),甯擱噺鍊箋?BR>6)闈炲唴瀛樼殑瀛樺偍(Non-RAM storage),瀹屽叏鐙珛浜庣▼搴忥紝鍗充嬌紼嬪簭澶卞幓浜嗗鏁版嵁鐨勬帶鍒訛紝瀹冧篃浠嶇劧榪樺湪銆傗滄祦瀵硅薄鈥濓細浼氳閫佸線鍙︿竴鍙版満鍣ㄧ殑錛岀敱瀵硅薄杞寲鑰屾垚鐨勫瓧鑺傛祦錛涒減ersistent瀵硅薄鈥濓細淇濆瓨鍦ㄧ鐩樹笂鐨勶紝鑳藉湪紼嬪簭涓涔嬪悗浠嶄繚瀛樺湪鍏朵粬浠嬭川涓婄殑涓滆タ銆?BR><BR>8銆佺壒渚嬶細primitive綾誨瀷鈥滈潪reference鐨勮嚜鍔ㄥ彉閲忊濄?BR>primitive綾誨瀷                Wrapper綾誨瀷<BR>boolean                          Boolean<BR>char                               Character<BR>byte                               Byte<BR>short                               Short<BR>int                                  Integer<BR>long                               Long<BR>float                               Float<BR>double                           Double<BR>void                               Void<BR><BR>9銆佷袱縐嶆柟娉曞彲浠ュ紩鐢╯tatic鍙橀噺銆?)閫氳繃涓涓璞t1.i錛?)鐩存帴鐢ㄧ被鐨勫悕瀛桽taticTest.i銆傞潤鎬佹柟娉曠殑鎬濊礬涔熷樊涓嶅銆?BR>class StaticTest{<BR> static int i=47;<BR>}<BR>StaticTest st1=new StaticTest();<BR>10銆佹湁涓涓被搴搄ava.lang浼氳鑷姩鐨勫紩鍏ユ墍鏈塲ava鏂囦歡銆?/P> <P><BR>javac *.java<BR>java *<BR>appletviewer *.html</P> <P><applet <BR> code =*.class width=100 height=100><BR></applet></P><img src ="http://www.shnenglu.com/jjbird/aggbug/2428.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/jjbird/" target="_blank">濂囧</a> 2006-01-04 15:35 <a href="http://www.shnenglu.com/jjbird/articles/2428.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item></channel></rss> <a href="http://www.shnenglu.com/">青青草原综合久久大伊人导航_色综合久久天天综合_日日噜噜夜夜狠狠久久丁香五月_热久久这里只有精品</a> <div style="position:fixed;left:-9000px;top:-9000px;"><font id="pjuwb"></font><button id="pjuwb"><pre id="pjuwb"></pre></button><sub id="pjuwb"></sub><tbody id="pjuwb"><var id="pjuwb"><address id="pjuwb"></address></var></tbody><listing id="pjuwb"><label id="pjuwb"><strong id="pjuwb"></strong></label></listing><wbr id="pjuwb"><small id="pjuwb"><tbody id="pjuwb"></tbody></small></wbr><ins id="pjuwb"><xmp id="pjuwb"></xmp></ins><style id="pjuwb"></style><label id="pjuwb"><em id="pjuwb"><li id="pjuwb"></li></em></label><samp id="pjuwb"></samp><menu id="pjuwb"><input id="pjuwb"></input></menu><pre id="pjuwb"><tbody id="pjuwb"><tfoot id="pjuwb"><button id="pjuwb"></button></tfoot></tbody></pre><form id="pjuwb"></form><i id="pjuwb"><style 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