小编tmb*_*mbo的帖子

在这里,我用来连接2个列表(使用相同的类型) :+

代码是 testResult:+ studentsearch

列表的长度在控制台中获得零值

调节器

@RequestMapping(value = Array("parent/ViewReports.html"))
 def viewReportPage(test: Test): String = {    

    var userAccount: UserAccount = secService.getLoggedUserAccount
    var z = userAccount.getId().toLong
    var studentsearch: java.util.List[StudentTest] = Nil
    var studentTestResult: java.util.List[StudentTest] =Nil
    var testResult: java.util.List[StudentTest] =Nil      

    var searchstudent = parentStudentService.findParentStudentByParent(z)

    for(srchStd <- searchstudent){    
      var sid= srchStd.getStudent().getId()  
      studentsearch = studentTestService.findAllStudentTestByStudent(sid)
    }

    testResult :+ studentsearch 
    println("Length:" +testResult.length)  
    studentTestResult = ListBuffer(testResult: _*)    .
    results = studentTestResult

    "redirect:/parent/result.html"
}

连接代码是错误的？

请分享你的答案