新闻微服务开发完成，首页微服务开发中

novel-news/news-service/src/main/java/com/java2nb/novel/news/controller/NewsController.java

@@ -0,0 +1,56 @@
+package com.java2nb.novel.news.controller;
+
+import com.github.pagehelper.PageInfo;
+import com.java2nb.novel.common.bean.ResultBean;
+import com.java2nb.novel.news.entity.News;
+import com.java2nb.novel.news.service.NewsService;
+import com.java2nb.novel.news.vo.NewsVO;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import io.swagger.annotations.ApiParam;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.BeanUtils;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * @author 11797
+ */
+@RestController
+@RequestMapping("news")
+@RequiredArgsConstructor
+@Slf4j
+@Api(tags = "新闻相关接口")
+public class NewsController {
+
+    private final NewsService newsService;
+
+
+    /**
+     * 分页查询新闻列表接口
+     * */
+    @ApiOperation("分页查询新闻列表接口")
+    @GetMapping("listByPage")
+    public ResultBean<List<NewsVO>> listByPage(@ApiParam("当前页码") @RequestParam(value = "curr", defaultValue = "1") int page, @ApiParam("每页大小") @RequestParam(value = "limit", defaultValue = "5") int pageSize){
+        return ResultBean.ok(new PageInfo<>(newsService.listByPage(page,pageSize)));
+    }
+
+    /**
+     * 新闻内容查询接口
+     * */
+    @ApiOperation("新闻内容查询接口")
+    @GetMapping("{newsId}")
+    public ResultBean<NewsVO> newsInfo(@ApiParam("新闻ID") @PathVariable("newsId") Long newsId) {
+        News news = newsService.queryNewsInfo(newsId);
+        NewsVO newsVO = new NewsVO();
+        BeanUtils.copyProperties(news,newsVO);
+        return ResultBean.ok(newsVO);
+    }
+
+
+
+
+}

novel-news/news-service/src/main/java/com/java2nb/novel/news/controller/api/NewsApi.java

@@ -0,0 +1,41 @@
+package com.java2nb.novel.news.controller.api;
+
+import com.java2nb.novel.news.entity.News;
+import com.java2nb.novel.news.service.NewsService;
+import com.java2nb.novel.news.vo.NewsVO;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.*;
+import springfox.documentation.annotations.ApiIgnore;
+
+import java.util.Date;
+import java.util.List;
+
+/**
+ * 新闻微服务API接口（内部调用）
+ * @author xiongxiaoyang
+ * @version 1.0
+ * @since 2020/5/27
+ */
+@RestController
+@RequestMapping(("api/news"))
+@ApiIgnore
+@RequiredArgsConstructor
+public class NewsApi {
+
+    private final NewsService newsService;
+
+    /**
+     * 查询最新新闻集合
+     * @param limit 查询条数
+     * @return 新闻集合
+     * */
+    @GetMapping("listLastIndexNews")
+    List<News> listLastIndexNews(@RequestParam("limit") int limit){
+
+        return newsService.listLastIndexNews(limit);
+
+    }
+
+
+
+}

novel-news/news-service/src/main/java/com/java2nb/novel/news/service/NewsService.java

@@ -0,0 +1,38 @@
+package com.java2nb.novel.news.service;
+
+
+import com.java2nb.novel.news.entity.News;
+import com.java2nb.novel.news.vo.NewsVO;
+
+import java.util.List;
+
+/**
+ * 新闻服务接口
+ * @author xiongxiaoyang
+ * @version 1.0
+ * @since 2020/5/28
+ */
+public interface NewsService {
+
+    /**
+     * 分页查询新闻列表接口
+     * @param page 查询页码
+     * @param pageSize 分页大小
+     * @return 新闻列表集合
+     * */
+    List<NewsVO> listByPage(int page, int pageSize);
+
+    /**
+     * 查询最新新闻集合
+     * @param limit 查询条数
+     * @return 新闻集合
+     * */
+    List<News> listLastIndexNews(int limit);
+
+    /**
+     * 查询新闻
+     * @param newsId 新闻id
+     * @return 新闻
+     * */
+    News queryNewsInfo(Long newsId);
+}

novel-news/news-service/src/main/java/com/java2nb/novel/news/service/impl/NewsServiceImpl.java

@@ -0,0 +1,70 @@
+package com.java2nb.novel.news.service.impl;
+
+import com.github.pagehelper.PageHelper;
+import com.java2nb.novel.common.utils.BeanUtil;
+import com.java2nb.novel.news.entity.News;
+import com.java2nb.novel.news.mapper.NewsDynamicSqlSupport;
+import com.java2nb.novel.news.mapper.NewsMapper;
+import com.java2nb.novel.news.service.NewsService;
+import com.java2nb.novel.news.vo.NewsVO;
+import lombok.RequiredArgsConstructor;
+import org.mybatis.dynamic.sql.render.RenderingStrategies;
+import org.mybatis.dynamic.sql.select.render.SelectStatementProvider;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+import static org.mybatis.dynamic.sql.SqlBuilder.isEqualTo;
+import static org.mybatis.dynamic.sql.select.SelectDSL.select;
+
+/**
+ * 新闻服务接口实现
+ * @author xiongxiaoyang
+ * @version 1.0
+ * @since 2020/5/28
+ */
+@Service
+@RequiredArgsConstructor
+public class NewsServiceImpl implements NewsService {
+
+    private final NewsMapper newsMapper;
+
+
+
+    @Override
+    public List<NewsVO> listByPage(int page, int pageSize) {
+        PageHelper.startPage(page,pageSize);
+        SelectStatementProvider selectStatement =
+                select(NewsDynamicSqlSupport.id, NewsDynamicSqlSupport.catName,
+                        NewsDynamicSqlSupport.catId, NewsDynamicSqlSupport.title,NewsDynamicSqlSupport.createTime)
+                .from(NewsDynamicSqlSupport.news)
+                .orderBy(NewsDynamicSqlSupport.createTime.descending())
+                .build()
+                .render(RenderingStrategies.MYBATIS3);
+
+        return BeanUtil.copyList(newsMapper.selectMany(selectStatement), NewsVO.class);
+    }
+
+    @Override
+    public List<News> listLastIndexNews(int limit) {
+            SelectStatementProvider selectStatement =
+                    select(NewsDynamicSqlSupport.id, NewsDynamicSqlSupport.catName,
+                            NewsDynamicSqlSupport.catId, NewsDynamicSqlSupport.title)
+                    .from(NewsDynamicSqlSupport.news)
+                    .orderBy(NewsDynamicSqlSupport.createTime.descending())
+                    .limit(limit)
+                    .build()
+                    .render(RenderingStrategies.MYBATIS3);
+            return newsMapper.selectMany(selectStatement);
+    }
+
+    @Override
+    public News queryNewsInfo(Long newsId) {
+        SelectStatementProvider selectStatement = select(NewsDynamicSqlSupport.news.allColumns())
+                .from(NewsDynamicSqlSupport.news)
+                .where(NewsDynamicSqlSupport.id,isEqualTo(newsId))
+                .build()
+                .render(RenderingStrategies.MYBATIS3);
+        return newsMapper.selectMany(selectStatement).get(0);
+    }
+}