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java存入MySQL 出現NULL空值
String paperid = (String )hs.getAttribute("paperid");String refreeid = (String )hs.getAttribute("refreeid");
// String paperid = request.getParameter("paperid");
// String refreeid = request.getParameter("refreeid");
// String paperid[]=request.getParameterValues("paperid");
//String refreeid[]=request.getParameterValues("refreeid");
if (paperid==null){
paperid = (String )hs.getAttribute("paperid");
}
if (refreeid==null){
refreeid = (String )hs.getAttribute("refreeid");
}
sql = "insert into reviewrecord values('"+paperid+"','"+refreeid+"')";
System.out.println(sql);
System.out.println("QE");
if (stmt != null) stmt.close();
if (pstmt != null) pstmt.close();
// 8.關閉Connection物件
if (con != null) con.close();
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