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1.` public Res evaluierenCourse(@FormParam("stuId") int stuId, @FormParam("score") String-Score) {

        Res res = new Res();
        Connection con = null;
        ResultSet rs = null;
        String[] temp =  score.split(",");
        int count = 0;
        try{
            con = getConnection();
            Statement sm = con.createStatement();
            String selectStuId = "select evaluateId from evaluate where stuId = " + stuId;
            rs = sm.executeQuery(selectStuId);

            for(String s: temp) {
                int scoreInt = Integer.parseInt(s);
                count++;
                switch (count) {
                    case 1:
                        int TEACHPROGRAM = scoreInt;
                        System.out.println("TEACHPROGRAM = " + TEACHPROGRAM);
                        String insert1 = "insert into evaluateDesc(EVALUATEID,ATTRNAME,ATTRSCORE) values(" + rs.getInt("evaluateId")
                                + "," + TEACHPROGRAM + ")";
                        System.out.println(insert1);
                        rs = sm.executeQuery(insert1);
                        if(rs.next()){
                            System.out.println("TEACHPROGRAM = " + rs.getInt(TEACHPROGRAM));
                        }
                        continue;
                    case 2:
                        int LECTURECONTENT = scoreInt;
                        System.out.println("LECTURECONTENT = " + LECTURECONTENT);
                        String insert2 = "insert into evaluateDesc(evaluateId,attrName,attrScore) values (" + rs.getInt("evaluate")
                                + "," + LECTURECONTENT + ")";
                        rs = sm.executeQuery(insert2);
                        if(rs.next()){
                            System.out.println("LECTURECONTENT = " + rs.getInt(LECTURECONTENT));
                        }
                        continue;
                    case 3:
                        int LECTUREMETHOD = scoreInt;
                        System.out.println("LECTUREMETHOD = " + LECTUREMETHOD);
                        String insert3 = "insert into evaluateDesc(evaluateId,attrName,attrScore) values (" + rs.getInt("evaluate")
                                + "," + LECTUREMETHOD + ")";
                        rs = sm.executeQuery(insert3);
                        if(rs.next()){
                            System.out.println("LECTUREMETHOD = " + rs.getInt(LECTUREMETHOD));
                        }
                        continue;
                    case 4:
                        int TSINTERACTION = scoreInt;
                        System.out.println("TSINTERACTION = " + TSINTERACTION);
                        String insert4 = "insert into evaluateDesc(evaluateId,attrName,attrScore) values (" + rs.getInt("evaluate")
                                + "," + TSINTERACTION + ")";
                        rs = sm.executeQuery(insert4);
                        if(rs.next()){
                            System.out.println("TSINTERACTION = " + rs.getInt(TSINTERACTION));
                        }
                        continue;
                    case 5:
                        int EVAMETHOD = scoreInt;
                        System.out.println("EVAMETHOD = " + EVAMETHOD);
                        String insert5 = "insert into evaluateDesc(evaluateId,attrName,attrScore) values (" + rs.getInt("evaluate")
                                + "," + EVAMETHOD + ")";
                        rs = sm.executeQuery(insert5);
                        if(rs.next()){
                            System.out.println("EVAMETHOD = " + rs.getInt(EVAMETHOD));
                        }
                        continue;
                    case 6:
                        int EVALUATE = scoreInt;
                        System.out.println("EVALUATE = " + EVALUATE);
                        String insert6 = "insert into evaluateDesc(evaluateId,attrName,attrScore) values (" + rs.getInt("evaluate")
                                + "," + EVALUATE + ")";
                        rs = sm.executeQuery(insert6);
                        if(rs.next()){
                            System.out.println("EVALUATE = " + rs.getInt(EVALUATE));
                        }
                        break;
                }
            }
        }catch (Exception e){
            e.printStackTrace();
        }

        res.setMsg("評(píng)教成功");
        return res;
    }
   `
   

2. Testcode:

    void testEvaluateCourse() {
        CourseEvaluateServiceImpl ce = new CourseEvaluateServiceImpl();
        String str = "15,15,10,0,0,0";
        ce.evaluateCourse(1,str.toString());
    }

3. Fehlermeldung:

開始嘗試連接數(shù)據(jù)庫(kù)！
連接成功
TEACHPROGRAM = 15

java.sql.SQLException: 未調(diào)用 ResultSet.next
    at oracle.jdbc.driver.GeneratedScrollableResultSet.getInt(GeneratedScrollableResultSet.java:565)
    at oracle.jdbc.driver.GeneratedResultSet.getInt(GeneratedResultSet.java:1350)
    at serviceImpl.CourseEvaluateServiceImpl.evaluateCourse(CourseEvaluateServiceImpl.java:45)
    at service.CourseEvaluateService$evaluateCourse.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133)
    at serviceImpl.CourseEvaluateServiceImplTest.testEvaluateCourse(CourseEvaluateServiceImplTest.groovy:10)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at junit.framework.TestCase.runTest(TestCase.java:154)
    at junit.framework.TestCase.runBare(TestCase.java:127)
    at junit.framework.TestResult.protect(TestResult.java:106)
    at junit.framework.TestResult.runProtected(TestResult.java:124)
    at junit.framework.TestResult.run(TestResult.java:109)
    at junit.framework.TestCase.run(TestCase.java:118)
    at junit.textui.TestRunner.doRun(TestRunner.java:116)
    at com.intellij.junit3.JUnit3IdeaTestRunner.doRun(JUnit3IdeaTestRunner.java:113)
    at junit.textui.TestRunner.doRun(TestRunner.java:109)
    at com.intellij.junit3.JUnit3IdeaTestRunner.startRunnerWithArgs(JUnit3IdeaTestRunner.java:45)
    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

Nach dem Aufruf von ResultSet.next() bewegt sich der Cursor in die n?chste Zeile. Wie w?re es, wenn Sie ihn mehrmals auf diese Weise aufrufen?
Ich habe wirklich viele Informationen überprüft. Ich hoffe, dass Gott gn?dig ist. Ich bin wirklich nur ein Anf?nger mit einem sehr schwachen Verst?ndnis.
Wenn ich wirklich Informationen zur L?sung des Problems finden k?nnte, würde ich nicht hierher kommen, um danach zu fragen! ! ! !