springboot --- 之SSM框架整合
阿新 • • 發佈:2018-09-06
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1.pom依賴: 即:spring-boot的基本jar ---- 內置springmvc和spring Thymeleaf jar 熱部署 jar ---方便二次加載 ctrl+f9再次編譯 Mybatis jar Mysql jar <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> </dependency> <!--熱部署--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional> <!-- 這個需要為 true 熱部署才有效 --> </dependency> <!-- mybatis --> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.1.1</version> </dependency> <!-- mysql --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.21</version> </dependency> 2.application的配置: #thymeleaf 配置 spring.thymeleaf.mode=HTML5 spring.thymeleaf.encoding=UTF-8 spring.thymeleaf.content-type=text/html #緩存設置為false, 這樣修改之後馬上生效,便於調試 spring.thymeleaf.cache=false #上下文 server.context-path=/thymeleaf #視圖層控制 #spring.mvc.view.prefix=classpath:/templates/ #spring.mvc.view.suffix=.html #spring.mvc.static-path-pattern=/static/** #數據庫 spring.datasource.url=jdbc:mysql://127.0.0.1:3306/how2java?characterEncoding=UTF-8 spring.datasource.username=root spring.datasource.password= spring.datasource.driver-class-name=com.mysql.jdbc.Driver 3.mapper層 以及非常簡單的entity層: @Mapper @Repository // 加上Repository註解,即可自動bean public interface CategoryMapper { @Select("select * from category_ ") public List<Category> findAll(); } 4.service層 --- 以及serviceImpl實現層 @Service public class CategoryServiceImpl implements CategoryService { @Autowired CategoryMapper; @Override public List<Category> selectAll() { return categoryMapper.findAll(); } } 5.controller層: 這個裏面加了pagehelper,可以忽略 @Controller public class CategoryController { @Autowired CategoryService categoryService; @RequestMapping("/listCategory") public String showList(Model model, @RequestParam(value = "start", defaultValue = "0") int start, @RequestParam(value = "size", defaultValue = "5") int size) throws Exception{ PageHelper.startPage(start,size); List<Category> list = categoryService.selectAll(); PageInfo<Category> page = new PageInfo<>(list); model.addAttribute("page",page); return "listCategory"; } } 6.Thymeleaf --- 渲染模板: 有點類似於EL表達式的寫法 <table border="1px"> <tr> <th>id</th> <th>name</th> </tr> <tr th:each="l:${page.list}"> <td th:text="${l.id}"></td> <td th:text="${l.name}"></td> </tr> </table> <a th:href="@{/listCategory(start=0)}">[首 頁]</a> <a th:href="@{/listCategory(start=${page.pageNum-1})}">[上一頁]</a> <a th:href="@{/listCategory(start=${page.pageNum+1})}">[下一頁]</a> <a th:href="@{/listCategory(start=${page.pages})}">[末 頁]</a>
springboot --- 之SSM框架整合