管理后台-题目维护功能

1.模糊查询题目列表

修改实现类QuestionServiceImpl的queryPage方法

原方法：

public PageUtils queryPage(Map<String, Object> params) {
    IPage<QuestionEntity> page = this.page(
        new Query<QuestionEntity>().getPage(params),
        new QueryWrapper<QuestionEntity>()
    );

    return new PageUtils(page);
}

修改后：

@Override
public PageUtils queryPage(Map<String, Object> params) {
    //1.get key
    String key = (String) params.get("key");
    QueryWrapper<QuestionEntity> queryWrapper = new QueryWrapper<>();
    if (!StringUtils.isEmpty(key)) {
        queryWrapper.eq("id", key).or().like("title", key).or().like("answer", key);
    }
    IPage<QuestionEntity> page = this.page(
        new Query<QuestionEntity>().getPage(params),
        queryWrapper
    );

    return new PageUtils(page);
}

2.添加分页插件

没有分页插件显示共0条

添加分页插件

package com.jackson0714.passjava.question.config;

import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableTransactionManagement //开启事务
@MapperScan("com.jackson0714.passjava.question.dao")
public class MyBatisConfig {

    //引入分页插件
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
        // 设置请求的页面大于最大页后操作， true调回到首页，false 继续请求  默认false
         paginationInterceptor.setOverflow(true);
        // 设置最大单页限制数量，默认 500 条，-1 不受限制
        paginationInterceptor.setLimit(1000);
        return paginationInterceptor;
    }
}

添加分页插件后的显示

配置了分页插件的显示