使用oracle发邮件

CREATE OR REPLACE PROCEDURE PROCSENDEMAIL(P_TXT       VARCHAR2,
                                          P_SUB       VARCHAR2,
                                          P_SENDOR    VARCHAR2,
                                          P_RECEIVER  VARCHAR2,
                                          P_SERVER    VARCHAR2,
                                          P_PORT      NUMBER DEFAULT 25,
                                          P_NEED_SMTP INT DEFAULT 0,
                                          P_USER      VARCHAR2 DEFAULT NULL,
                                          P_PASS      VARCHAR2 DEFAULT NULL,
                                          P_FILENAME  VARCHAR2 DEFAULT NULL,
                                          P_ENCODE    VARCHAR2 DEFAULT 'bit 7')
  AUTHID CURRENT_USER IS
  /*

  */
  L_CRLF VARCHAR2(2) := UTL_TCP.CRLF;
  L_SENDORADDRESS VARCHAR2(4000);
  L_SPLITE        VARCHAR2(10) := '++';
  BOUNDARY            CONSTANT VARCHAR2(256) := '-----BYSUK';
  FIRST_BOUNDARY      CONSTANT VARCHAR2(256) := '--' || BOUNDARY || L_CRLF;
  LAST_BOUNDARY       CONSTANT VARCHAR2(256) := '--' || BOUNDARY || '--' ||
                                                L_CRLF;
  MULTIPART_MIME_TYPE CONSTANT VARCHAR2(256) := 'multipart/mixed; boundary="' ||
                                                BOUNDARY || '"';
  /* 以下部分是发送大二进制附件时用到的变量 */
  L_FIL                 BFILE;
  L_FILE_LEN            NUMBER;
  L_MODULO              NUMBER;
  L_PIECES              NUMBER;
  L_FILE_HANDLE         UTL_FILE.FILE_TYPE;
  L_AMT                 BINARY_INTEGER := 672 * 3; /* ensures proper format;  2016 */
  L_FILEPOS             PLS_INTEGER := 1; /* pointer for the file */
  L_CHUNKS              NUMBER;
  L_BUF                 RAW(2100);
  L_DATA                RAW(2100);
  L_MAX_LINE_WIDTH      NUMBER := 54;
  L_DIRECTORY_BASE_NAME VARCHAR2(100) := 'DIR_FOR_SEND_MAIL';
  L_LINE                VARCHAR2(1000);
  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;