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ORACLE 自动发邮件代码(3)

时间:2015-07-12 16:27来源:linux.it.net.cn 作者:IT

    L_MESG VARCHAR2 (32767);
    /* 以上部分是发送大二进制附件时用到的变量 */
    TYPE ADDRESS_LIST
    IS
    TABLE OF VARCHAR2 (100)

INDEX BY BINARY_INTEGER;
    MY_ADDRESS_LIST ADDRESS_LIST;
    TYPE ACCT_LIST
    IS
    TABLE OF VARCHAR2 (100)
    INDEX BY BINARY_INTEGER;
    MY_ACCT_LIST ACCT_LIST;
    -------------------------------------返回附件源文件所在目录或者名称-----------------------

 

    FUNCTION GET_FILE (P_FILE VARCHAR2, P_GET INT)
    RETURN VARCHAR2
    IS
    --p_get=1 表示返回目录
    --p_get=2 表示返回文件名
    L_FILE VARCHAR2 (1000);
    BEGIN
    IF INSTR (P_FILE, '\') > 0
    THEN
    --windows
    IF P_GET = 1
    THEN
    L_FILE := SUBSTR (P_FILE, 1, INSTR (P_FILE, '\', -1) - 1);
    ELSIF P_GET = 2
    THEN
    L_FILE :=
    SUBSTR (P_FILE, - (LENGTH (P_FILE) - INSTR (P_FILE, '\', -1)));
    END IF;
    ELSIF INSTR (P_FILE, '/') > 0
    THEN
    --linux/unix
    IF P_GET = 1
    THEN
    L_FILE := SUBSTR (P_FILE, 1, INSTR (P_FILE, '/', -1) - 1);
    ELSIF P_GET = 2
    THEN
    L_FILE :=
    SUBSTR (P_FILE, - (LENGTH (P_FILE) - INSTR (P_FILE, '/', -1)));
    END IF;
    END IF;
    RETURN L_FILE;
    END;
    ---------------------------------------------删除directory------------------------------------
    PROCEDURE DROP_DIRECTORY (P_DIRECTORY_NAME VARCHAR2)
    IS
    BEGIN
    EXECUTE IMMEDIATE 'drop directory ' || P_DIRECTORY_NAME;
    EXCEPTION
    WHEN OTHERS
    THEN
    NULL;
    END;
    --------------------------------------------------创建directory-----------------------------------------
    PROCEDURE CREATE_DIRECTORY (P_DIRECTORY_NAME VARCHAR2, P_DIR VARCHAR2)
    IS
    BEGIN
    EXECUTE IMMEDIATE 'create directory '
    || P_DIRECTORY_NAME
    || ' as '''
    || P_DIR
    || '''';
    EXECUTE IMMEDIATE 'grant read,write on directory '
    || P_DIRECTORY_NAME
    || ' to public';
    EXCEPTION
    WHEN OTHERS
    THEN
    RAISE;
    END;
    --------------------------------------------分割邮件地址或者附件地址--------------------

    PROCEDURE P_SPLITE_STR (P_STR VARCHAR2, P_SPLITE_FLAG INT DEFAULT 1 )
    IS
    L_ADDR VARCHAR2 (254) := '';
    L_LEN INT;
    L_STR VARCHAR2 (4000);
    J INT := 0; --表示邮件地址或者附件的个数
    BEGIN
    /*处理接收邮件地址列表,包括去空格、将;转换为,等*/
    L_STR :=
    TRIM (RTRIM (REPLACE (REPLACE (P_STR, ';', ','), ' ', ''), ','));
    L_LEN := LENGTH (L_STR);
    FOR I IN 1 .. L_LEN
    LOOP
    IF SUBSTR (L_STR, I, 1) <> ','
    THEN
    L_ADDR := L_ADDR || SUBSTR (L_STR, I, 1);
    ELSE
    J := J + 1;
    IF P_SPLITE_FLAG = 1
    THEN --表示处理邮件地址
    --前后需要加上'<>',否则很多邮箱将不能发送邮件
    L_ADDR := '<' || L_ADDR || '>';
    --调用邮件发送过程
    MY_ADDRESS_LIST (J) := L_ADDR;
    ELSIF P_SPLITE_FLAG = 2
    THEN --表示处理附件名称
    MY_ACCT_LIST (J) := L_ADDR;
    END IF;
    L_ADDR := '';
    END IF;
    IF I = L_LEN
    THEN
    J := J + 1;
    IF P_SPLITE_FLAG = 1
    THEN
    --调用邮件发送过程
    L_ADDR := '<' || L_ADDR || '>';
    MY_ADDRESS_LIST (J) := L_ADDR;
    ELSIF P_SPLITE_FLAG = 2
    THEN
    MY_ACCT_LIST (J) := L_ADDR;
    END IF;
    END IF;
    END LOOP;
    END;
    ------------------------------------------------写邮件头和邮件内容------------------------------------------

    PROCEDURE WRITE_DATA (P_CONN IN OUT NOCOPY UTL_SMTP.CONNECTION,
    P_NAME IN VARCHAR2,
    P_VALUE IN VARCHAR2,
    P_SPLITE VARCHAR2 DEFAULT ':' ,
    P_CRLF VARCHAR2 DEFAULT L_CRLF )
    IS
    BEGIN
    /* utl_raw.cast_to_raw 对解决中文乱码问题很重要*/
    UTL_SMTP.WRITE_RAW_DATA (
    P_CONN,
    UTL_RAW.CAST_TO_RAW (
    CONVERT (P_NAME || P_SPLITE || P_VALUE || P_CRLF, 'ZHS16GBK')
    )
    );
    END;
    ----------------------------------------写MIME邮件尾部-----------------------------------------------------
    PROCEDURE END_BOUNDARY (CONN IN OUT NOCOPY UTL_SMTP.CONNECTION,
    LAST IN BOOLEAN DEFAULT FALSE )
    IS
    BEGIN
    UTL_SMTP.WRITE_DATA (CONN, UTL_TCP.CRLF);
    IF (LAST)
    THEN
    UTL_SMTP.WRITE_DATA (CONN, LAST_BOUNDARY);
    END IF;
    END;
    ----------------------------------------------发送附件----------------------------------------------------
    PROCEDURE ATTACHMENT (
    CONN IN OUT NOCOPY UTL_SMTP.CONNECTION,
    MIME_TYPE IN VARCHAR2 DEFAULT 'text/plain' ,
    INLINE IN BOOLEAN DEFAULT TRUE ,
    FILENAME IN VARCHAR2 DEFAULT 't.txt' ,
    TRANSFER_ENC IN VARCHAR2 DEFAULT '7 bit' ,
    DT_NAME IN VARCHAR2 DEFAULT '0'
    )
    IS
    L_FILENAME VARCHAR2 (1000);
    BEGIN
    --写附件头
    UTL_SMTP.WRITE_DATA (CONN, FIRST_BOUNDARY);
    --设置附件格式
    WRITE_DATA (CONN, 'Content-Type', MIME_TYPE);
    --如果文件名称非空,表示有附件
    DROP_DIRECTORY (DT_NAME);
    --创建directory
    CREATE_DIRECTORY (DT_NAME, GET_FILE (FILENAME, 1));
    --得到附件文件名称
    L_FILENAME := GET_FILE (FILENAME, 2);
    IF (INLINE)
    THEN
    WRITE_DATA (CONN,
    'Content-Disposition',
    'inline; filename="' || L_FILENAME || '"');
    ELSE
    WRITE_DATA (CONN,
    'Content-Disposition',
    'attachment; filename="' || L_FILENAME || '"');
    END IF;
    --设置附件的转换格式
    IF (TRANSFER_ENC IS NOT NULL)
    THEN
    WRITE_DATA (CONN, 'Content-Transfer-Encoding', TRANSFER_ENC);
    END IF;
    UTL_SMTP.WRITE_DATA (CONN, UTL_TCP.CRLF);
    --begin 贴附件内容
    IF TRANSFER_ENC = 'bit 7'
    THEN
    --如果是文本类型的附件
    BEGIN
    L_FILE_HANDLE := UTL_FILE.FOPEN (DT_NAME, L_FILENAME, 'r'); --打开文件
    --把附件分成多份,这样可以发送超过32K的附件
    LOOP
    UTL_FILE.GET_LINE (L_FILE_HANDLE, L_LINE);
    L_MESG := L_LINE || L_CRLF;
    WRITE_DATA (CONN,
    '',
    L_MESG,
    '',
    '');
    END LOOP;
    UTL_FILE.FCLOSE (L_FILE_HANDLE);
    END_BOUNDARY (CONN);
    EXCEPTION
    WHEN OTHERS
    THEN
    UTL_FILE.FCLOSE (L_FILE_HANDLE);
    END_BOUNDARY (CONN);
    NULL;
    END; --结束文本类型附件的处理
    ELSIF TRANSFER_ENC = 'base64'
    THEN
    --如果是二进制类型的附件
    BEGIN

 

    --把附件分成多份,这样可以发送超过32K的附件
    L_FILEPOS := 1; --重置offset,在发送多个附件时,必须重置
    L_FIL := BFILENAME (DT_NAME, L_FILENAME);
    L_FILE_LEN := DBMS_LOB.GETLENGTH (L_FIL);
    L_MODULO := MOD (L_FILE_LEN, L_AMT);
    L_PIECES := TRUNC (L_FILE_LEN / L_AMT);
    IF (L_MODULO <> 0)
    THEN
    L_PIECES := L_PIECES + 1;
    END IF;
    DBMS_LOB.FILEOPEN (L_FIL, DBMS_LOB.FILE_READONLY);
    DBMS_LOB.READ (L_FIL,
    L_AMT,
    L_FILEPOS,
    L_BUF);
    L_DATA := NULL;

    FOR I IN 1 .. L_PIECES
    LOOP
    L_FILEPOS := I * L_AMT + 1;
    L_FILE_LEN := L_FILE_LEN - L_AMT;
    L_DATA := UTL_RAW.CONCAT (L_DATA, L_BUF);
    L_CHUNKS := TRUNC (UTL_RAW.LENGTH (L_DATA) / L_MAX_LINE_WIDTH);
    IF (I <> L_PIECES)
    THEN
    L_CHUNKS := L_CHUNKS - 1;
    END IF;
    UTL_SMTP.WRITE_RAW_DATA (CONN,
    UTL_ENCODE.BASE64_ENCODE (L_DATA));
    L_DATA := NULL;
    IF (L_FILE_LEN < L_AMT AND L_FILE_LEN > 0)
    THEN
    L_AMT := L_FILE_LEN;
    END IF;
    DBMS_LOB.READ (L_FIL,
    L_AMT,
    L_FILEPOS,
    L_BUF);
    END LOOP;
    DBMS_LOB.FILECLOSE (L_FIL);
    END_BOUNDARY (CONN);
    EXCEPTION
    WHEN OTHERS
    THEN
    DBMS_LOB.FILECLOSE (L_FIL);
    END_BOUNDARY (CONN);
    RAISE;
    END; --结束处理二进制附件
    END IF; --结束处理附件内容
    DROP_DIRECTORY (DT_NAME);
    END; --结束过程ATTACHMENT
    ---------------------------------------------真正发送邮件的过程--------------------------------------------
    PROCEDURE P_EMAIL (P_SENDORADDRESS2 VARCHAR2, --发送地址
    P_RECEIVERADDRESS2 VARCHAR2) --接受地址
    IS
    L_CONN UTL_SMTP.CONNECTION; --定义连接
    BEGIN
    /*初始化邮件服务器信息,连接邮件服务器*/
    L_CONN := UTL_SMTP.OPEN_CONNECTION (P_SERVER, P_PORT);
    UTL_SMTP.HELO (L_CONN, P_SERVER);
    /* smtp服务器登录校验 */
    IF P_NEED_SMTP = 1
    THEN
    UTL_SMTP.COMMAND (L_CONN, 'AUTH LOGIN', '');
    UTL_SMTP.COMMAND (
    L_CONN,
    UTL_RAW.CAST_TO_VARCHAR2 (
    UTL_ENCODE.BASE64_ENCODE (UTL_RAW.CAST_TO_RAW (P_USER))
    )
    );
    UTL_SMTP.COMMAND (
    L_CONN,
    UTL_RAW.CAST_TO_VARCHAR2 (
    UTL_ENCODE.BASE64_ENCODE (UTL_RAW.CAST_TO_RAW (P_PASS))
    )
    );
    END IF;
    /*设置发送地址和接收地址*/
    UTL_SMTP.MAIL (L_CONN, P_SENDORADDRESS2);
    UTL_SMTP.RCPT (L_CONN, P_RECEIVERADDRESS2);
    /*设置邮件头*/
    UTL_SMTP.OPEN_DATA (L_CONN);
    WRITE_DATA (L_CONN, 'Date', TO_CHAR (SYSDATE, 'yyyy-mm-dd hh24:mi:ss'));
    /*设置发送人*/
    WRITE_DATA (L_CONN, 'From', P_SENDOR);
    /*设置接收人*/
    WRITE_DATA (L_CONN, 'To', P_RECEIVER);
    /*设置邮件主题*/
    WRITE_DATA (L_CONN, 'Subject', P_SUB);
    WRITE_DATA (L_CONN, 'Content-Type', MULTIPART_MIME_TYPE);
    UTL_SMTP.WRITE_DATA (L_CONN, UTL_TCP.CRLF);
    UTL_SMTP.WRITE_DATA (L_CONN, FIRST_BOUNDARY);
    WRITE_DATA (L_CONN, 'Content-Type', 'text/plain;charset=gb2312');
    --单独空一行,否则,正文内容不显示
    UTL_SMTP.WRITE_DATA (L_CONN, UTL_TCP.CRLF);
    /* 设置邮件正文
    把分隔符还原成chr(10)。这主要是为了shell中调用该过程,如果有多行,则先把多行的内容合并成一行,并用 l_splite分隔
    然后用 l_crlf替换chr(10)。这一步是必须的,否则将不能发送邮件正文有多行的邮件
    */
    WRITE_DATA (
    L_CONN,
    '',
    REPLACE (REPLACE (P_TXT, L_SPLITE, CHR (10)), CHR (10), L_CRLF),
    '',
    ''
    );
    END_BOUNDARY (L_CONN);
    --如果文件名称不为空,则发送附件
    IF (P_FILENAME IS NOT NULL)
    THEN
    --根据逗号或者分号拆分附件地址
    P_SPLITE_STR (P_FILENAME, 2);
    --循环发送附件(在同一个邮件中)
    FOR K IN 1 .. MY_ACCT_LIST.COUNT
    LOOP
    ATTACHMENT (
    CONN => L_CONN,
    FILENAME => MY_ACCT_LIST (K),
    TRANSFER_ENC => P_ENCODE,
    DT_NAME => L_DIRECTORY_BASE_NAME || TO_CHAR (K)
    );
    END LOOP;
    END IF;
 

 

    /*关闭数据写入*/
    UTL_SMTP.CLOSE_DATA (L_CONN);
    /*关闭连接*/
    UTL_SMTP.QUIT (L_CONN);
    /*异常处理*/
    EXCEPTION
    WHEN OTHERS
    THEN
    NULL;
    RAISE;
    END;
    ---------------------------------------------------主过程-----------------------------------------------------
    BEGIN
    L_SENDORADDRESS := '<' || P_SENDOR || '>';
    P_SPLITE_STR (P_RECEIVER); --处理邮件地址
    FOR K IN 1 .. MY_ADDRESS_LIST.COUNT
    LOOP
    P_EMAIL (L_SENDORADDRESS, MY_ADDRESS_LIST (K));
    END LOOP;
    /*处理邮件地址,根据逗号分割邮件*/
    EXCEPTION
    WHEN OTHERS
    THEN
    RAISE;
    END;


 

 

(责任编辑:IT)
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