数据库BLOB和CLOB插入 oracle java

============oracle 表 sql

sql 复制代码

  CREATE TABLE "SMALL19RAIN"."R_TABLE_LOB" 
   (	"R_ID" NUMBER NOT NULL ENABLE, 
	"R_CLOB" CLOB, 
	"R_BLOB" BLOB
   ) SEGMENT CREATION IMMEDIATE 
  PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 
 NOCOMPRESS LOGGING
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
  BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "SMALLRAIN19TABLESPACE" 
 LOB ("R_CLOB") STORE AS SECUREFILE (
  TABLESPACE "SMALLRAIN19TABLESPACE" ENABLE STORAGE IN ROW CHUNK 8192
  NOCACHE LOGGING  NOCOMPRESS  KEEP_DUPLICATES 
  STORAGE(INITIAL 106496 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0
  BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)) 
 LOB ("R_BLOB") STORE AS SECUREFILE (
  TABLESPACE "SMALLRAIN19TABLESPACE" ENABLE STORAGE IN ROW CHUNK 8192
  NOCACHE LOGGING  NOCOMPRESS  KEEP_DUPLICATES 
  STORAGE(INITIAL 106496 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0
  BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)) ;

==============java 文件

java 复制代码

package org.rain.db;

import java.io.FileInputStream;
import java.io.FileReader;
import java.io.Reader;
import java.io.StringReader;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

/**
 * 数据库BlOB和CLOB插入 
 */
public class SmallRainDBLOB {
	public static void main(String[] args) {
		Connection smallrainConn = null;
//		Statement smallrainStmt = null;
		PreparedStatement smallrainStmt = null;
		try {
			Class.forName("oracle.jdbc.driver.OracleDriver");
			smallrainConn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl", "smallrain123456789",
					"Xiaoyu123456789");
			SmallRainDBLOB smallrainDB = new SmallRainDBLOB();

//			插入clob数据String
			smallrainStmt = smallrainConn.prepareStatement("INSERT INTO R_TABLE_LOB (R_CLOB,R_ID) VALUES (?,?)");
			String smallRainclobText = "oracle数据库大数据ClOB";
			StringReader smallrainReaderString = new StringReader(smallRainclobText);
			smallrainStmt.setClob(1, smallrainReaderString);
			smallrainStmt.setInt(2, 333);
			smallrainStmt.executeUpdate();

//			插入clob文件数据,将文本文件放到当前java文件目录下，文件名为 22228.txt
			smallrainStmt = smallrainConn.prepareStatement("INSERT INTO R_TABLE_LOB (R_CLOB,R_ID) VALUES (?,?)");
			Reader smallrainFileReader = new FileReader(smallrainDB.getClass().getResource("22228.txt").getFile());

			smallrainStmt.setCharacterStream(1, smallrainFileReader);
			smallrainStmt.setInt(2, 222);
			smallrainStmt.executeUpdate();

//			插入blob数据
			smallrainStmt = smallrainConn.prepareStatement("INSERT INTO R_TABLE_LOB (R_ID, R_BLOB) VALUES (?,?)");
//			将图片文件放到当前java文件目录下，文件名为 345445.png
			FileInputStream fis = new FileInputStream(smallrainDB.getClass().getResource("345445.png").getFile());
			smallrainStmt.setInt(1, 6666);
			smallrainStmt.setBinaryStream(2, fis);
			smallrainStmt.executeUpdate();

		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (smallrainStmt != null) {
					smallrainStmt.close();
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
			try {
				if (smallrainConn != null) {
					smallrainConn.close();
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}
}