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Thread: Inserting Large XML file into Oracle Database through java

  1. #1
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    Default Inserting Large XML file into Oracle Database through java

    Hi ,

    I am trying to insert a large xml file into oracle database , i am getting the following error ,please help me.

    ORA-30676: socket read or write failed
    ORA-06512: at "SYS.XMLTYPE", line 5


    Following is my code

    import oracle.sql.CLOB;
    import java.sql.Connection;
    import java.sql.SQLException;
    import java.io.Writer;

    import javax.xml.parsers.DocumentBuilderFactory;
    import javax.xml.parsers.DocumentBuilder;
    import org.w3c.dom.Document;
    import java.sql.SQLException;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.io.FileReader;
    import java.sql.*;
    import oracle.jdbc.OraclePreparedStatement;
    import oracle.sql.CLOB;
    import oracle.xdb.XMLType;
    public class InsertXml {
    // private static Connection conn=null;
    public static String getXMLString(java.sql.Connection conn, Document doc)throws SQLException

    {

    //String query="<?xml version=\"1.0\"?><customer><name>Joe Smith</name><Job>SoftWare</Job><title>Mathematician</title></customer>";
    String SQLTEXT = "";
    XMLType xml = null;
    xml = XMLType.createXML(conn,doc);
    //System.out.println("xml oject "+xml.toString());

    try {
    //xml = XMLType.createXML(conn,new FileInputStream("C://har1.xml"));
    xml = XMLType.createXML(conn,doc);
    // return xml.getStringVal().trim().replace("null", "").replace("\000", " ").replace("\0x0", " ").replace("\r\n", " ").replace("\n", " ");

    } catch (Exception e) {
    e.printStackTrace();
    }
    return xml.getStringVal();
    //return xml.getStringVal().trim().replace("null", "").replace("\000", " ").replace("\0x0", " ").replace("\r\n", " ").replace("\n", " ");

    }

    private static void insertXML(String xmlData, Connection conn) {
    CLOB clob = null;
    String query;
    //XMLType xml = null;
    //xml = XMLType.createXML(conn,doc);
    // Initialize statement Object
    OraclePreparedStatement pstmt = null;
    try{
    //query="insert into xml_tab(id) values(?)";
    //

    query = "INSERT INTO xml_tab(xmldata) values(xmltype.createxml(?))";

    // Get the statement Object
    pstmt = (OraclePreparedStatement)conn.prepareStatement(que ry);
    // xmlData is the string that contains the XML Data.
    // Get the CLOB object.
    clob = getCLOB(xmlData, conn);
    System.out.println("clob is "+clob);
    // Bind this CLOB with the prepared Statement
    //pstmt.setInt(1,2);
    // pstmt.setString(2,"test.xml");
    pstmt.setObject(1,clob);
    // pstmt.setObject(1, clob);
    // Execute the Prepared Statement
    if (pstmt.executeUpdate()==1) {
    System.out.println ("Successfully inserted a Purchase Order");
    }
    } catch(SQLException sqlexp){
    sqlexp.printStackTrace();
    } catch(Exception exp){
    exp.printStackTrace();
    }
    }

    private static CLOB getCLOB(String xmlData, Connection conn) throws SQLException{
    CLOB tempClob = null;
    try{
    // If the temporary CLOB has not yet been created, create one
    tempClob = CLOB.createTemporary(conn, true, CLOB.DURATION_SESSION);

    // Open the temporary CLOB in readwrite mode, to enable writing
    tempClob.open(CLOB.MODE_READWRITE);
    // Get the output stream to write
    Writer tempClobWriter = tempClob.getCharacterOutputStream();
    // Write the data into the temporary CLOB
    tempClobWriter.write(xmlData);

    // Flush and close the stream
    tempClobWriter.flush();
    tempClobWriter.close();

    // Close the temporary CLOB
    tempClob.close();
    } catch(SQLException sqlexp){
    tempClob.freeTemporary();
    sqlexp.printStackTrace();
    } catch(Exception exp){
    tempClob.freeTemporary();
    exp.printStackTrace();
    }
    return tempClob;
    }

    public static void main(String arg[]) {

    try {
    Connection conn=null;
    conn=DBConnection.getConnection();

    File fXmlFile = new File("C:/har1.xml");
    //String filetxt=fXmlFile.toString();
    DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
    Document doc = dBuilder.parse(fXmlFile);
    // doc.getDocumentElement().normalize();
    String strxml=getXMLString(conn,doc);
    insertXML(strxml,conn);

    //doInsert(conn, doc);

    } catch (Exception e) {
    e.printStackTrace();
    }
    }




    } Edit Post Reply Reply With Quote .


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Inserting Large XML file into Oracle Database through java

    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
    Junior Member
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    Default Re: Inserting Large XML file into Oracle Database through java

    Hi Norm i didn't understand ,what u said

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