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顯示結果集的值之前,我有一個檢索結果集從值的方法,其中一些列的值是1如何檢查是否持有情況在Java中
現在我想申請其中規定的條件,當beam_current = 101.20
,beam_energy=2500.063
和st1_prmt_status_p45=1
然後值應該打印。
我的顯示值的代碼是:
public LinkedHashMap < String, Integer > beam_CurrentStatus() throws SQLException {
try
{
con = getConnection();
stmt = con.createStatement();
String sql = "SELECT TOP 1 c.logtime, a.BL1_data_SS_ST,a.BL2_data_SS_ST,a.BL3_data_SS_ST,a.BL4_data_SS_ST,a.BL5_data_SS_ST,a.BL6_data_SS_ST,a.BL7_data_SS_ST,a.BL8_data_SS_ST,a.BL9_data_SS_ST,a.BL10_data_SS_ST,a.BL11_data_SS_ST, a.BL12_data_SS_ST,a.BL13_data_SS_ST,a.BL14_data_SS_ST,a.BL15_data_SS_ST,a.BL16_data_SS_ST,a.BL17_data_SS_ST,a.BL18_data_SS_ST,a.BL19_data_SS_ST,a.BL20_data_SS_ST,a.BL21_data_SS_ST,a.BL22_data_SS_ST,a.BL23_data_SS_ST,a.BL24_data_SS_ST,a.BL25_data_SS_ST,a.BL26_data_SS_ST,a.BL27_data_SS_ST,b.st1_prmt_status_p45,c.beam_current,c.beam_energy from INDUS2_BLFE.dbo.main_BLFE_status a inner join INDUS2_MSIS.dbo.main_MSIS_status b on a.logtime=b.logtime inner join INDUS2_BDS.dbo.DCCT c on b.logtime=c.logtime ORDER BY c.logtime DESC ";
stmt.executeQuery(sql);
rs = stmt.getResultSet();
ResultSetMetaData rsmd = rs.getMetaData();
while (rs.next()) {
for (int j = 2; j < 29; j++) {
if (rs.getInt(j) == 1) {
String name = rsmd.getColumnLabel(j);
map.put(name, rs.getInt(j));
}
}
}
} catch (Exception e) {
System.out.println("\nException in Bean " + e.getMessage());
} finally {
closeConnection(stmt, rs, con);
}
return map;
}
我想申請喜歡
if(rs.getInt(29)==1|| rs.getDouble(30)==101.20||rs.getDouble(30)==2500.063)
{
for (int j = 2; j < 29; j++)
{.......
的條件,但如果這種狀況已經對循環沒有影響?如何if條件應用此在while循環中?
您顯示的代碼用於將結果存儲到「地圖」中。 –
@ PM77-1存儲值正在顯示。我只想存儲滿足上述條件的值。 –
您的條件用'和'拼出,但用'||'(或)編程。這是故意的嗎? –