package com.lrl.question.util;import com.lrl.question.vo.Question;
import com.lrl.question.vo.Problem;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Component;import java.util.ArrayList;
import java.util.List;
import java.util.Random;
@Configuration
public class QuestionUtil {@Beanpublic Problem getQuestion() {List<Question>questionList = new ArrayList<>();Integer result[] = new Integer[50];Problem problem = new Problem();int m = 0, n = 0, value = 0;char o = '+';Random random = new Random();int ov = random.nextInt(2); // 0：加号； 1：减号for (int i = 0; i < 50; i++) {if(ov == 0) {o = '+';do {m = random.nextInt(101);n = random.nextInt(101);value = m + n;}while(value > 100);}else {o = '-';do {m = random.nextInt(101);n = random.nextInt(101);value = m - n;}while(value < 0);}ov = random.nextInt(2);Question question = new Question();String que = "";question.setQuestion("" + m + o + n + " = ");question.setNum(i+1);questionList.add(question);result[i] = value;}problem.setResult(result);problem.setList(questionList);return problem;}
}

@Controller
public class QuestionController {@Autowiredprivate Problem getQuestion;@GetMapping("/")public String toQuestion(Model model){List<Question> questionList = getQuestion.getList();model.addAttribute("questionList",questionList);return "question";}@PostMapping("/score")private  String getGrade(Model model,Integer value[]){List<Mistake>mistakeList = new ArrayList<>();Integer score  = 100;Integer result[] = value;Integer answer[] = getQuestion.getResult();for (int i = 0; i < getQuestion.getList().size(); i++) {if(result[i]!=answer[i]){score = score-2;Mistake mistake = new Mistake();mistake.setMistake(getQuestion.getList().get(i).getQuestion());mistake.setMistakeNum(i+1);mistake.setMistakeResult(result[i]);mistake.setCorrectResult(answer[i]);mistakeList.add(mistake);}}model.addAttribute("score",score);model.addAttribute("mistakeList",mistakeList);return "score";}
}