SpringBoot访问NoSQL
SpringBoot访问Redis
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在pom.xml添加boot-data-redis定义
org.springframework.boot spring-boot-starter-parent 2.0.1.RELEASE UTF-8 UTF-8 1.8 org.springframework.boot spring-boot-starter-data-redis -
在application.properties添加redis连接参数
spring.redis.host=localhostspring.redis.port=6379
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定义启动类
@SpringBootApplicationpublic class MyBootApplication {} -
测试程序
public static void main(String[] args) { ApplicationContext ac = SpringApplication.run(MyBootApplication.class, args); RedisTemplate
SpringBoot访问Mongodb
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在pom.xml追加boot-starter-data-mongodb定义
org.springframework.boot spring-boot-starter-parent 2.0.1.RELEASE UTF-8 UTF-8 1.8 org.springframework.boot spring-boot-starter-data-mongodb -
在application.properties追加连接参数定义
spring.data.mongodb.uri=mongodb://localhost:27017/java20#spring.data.mongodb.host=localhost#spring.data.mongodb.port=27017#spring.data.mongodb.database=java20
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定义主启动类
@SpringBootApplicationpublic class MyBootApplication {} -
测试程序
public static void main(String[] args) { ApplicationContext ac = SpringApplication.run(MyBootApplication.class, args); MongoTemplate template = ac.getBean("mongoTemplate",MongoTemplate.class); Listlist = template.findAll(Dept.class); for(Dept dept:list){ System.out.println( dept.getDeptno()+" "+dept.getDname()+" "+dept.getLoc()); }}
SpringBoot MVC
主要封装了SpringMVC、Restful、内置tomcat等功能。
restful服务
SSM：SpringMVC、IOC、MyBatis
/dept/get GET 查询部门信息
/dept/list GET 分页查询部门信息
请求-->DispatcherServlet-->HandlerMapping-->DeptController-->DeptDao-->返回JSON结果
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在pom.xml追加web、jdbc、mybatis-spring、驱动包定义
org.springframework.boot spring-boot-starter-parent 2.0.1.RELEASE UTF-8 UTF-8 1.8 org.springframework.boot spring-boot-starter-jdbc com.oracle ojdbc6 11.2.0.3 org.mybatis.spring.boot mybatis-spring-boot-starter 1.3.0 com.github.pagehelper pagehelper-spring-boot-starter 1.2.3 -
在application.properties追加连接参数定义
#serverserver.port=8888#datasourcespring.datasource.username=SCOTTspring.datasource.password=TIGERspring.datasource.url=jdbc:oracle:thin:@localhost:1521:XEspring.datasource.driverClassName=oracle.jdbc.OracleDriver
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编写实现DeptDao
- 定义实体类Dept（同上）
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定义Mapper映射器+注解SQL
public interface DeptDao { @Select("select * from dept where deptno=#{no}") public Dept findById(int no); @Select("select * from dept order by deptno") public ListfindAll();}
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编写实现DeptController
@RestControllerpublic class DeptController { @Autowired private DeptDao deptDao; @GetMapping("/dept/get")// dept/get?no=xx public Dept load(int no){ Dept dept = deptDao.findById(no); return dept; } @GetMapping("/dept/list")// dept/list?page=xx&size=xx public ListloadPage( @RequestParam(required=false,defaultValue="1",name="page")int pageNum, @RequestParam(required=false,defaultValue="5",name="size")int pageSize){ PageHelper.startPage(pageNum, pageSize); List list = deptDao.findAll(); return list; }} -
定义启动类、追加@SpringBootApplication、@MapperScan标记
@SpringBootApplication@MapperScan(basePackages={"cn.xdl.dao"})public class MyBootApplication { public static void main(String[] args) { SpringApplication.run(MyBootApplication.class, args); }} -
启动Boot程序测试
JSP响应界面
/hello-->DispatcherServlet-->HandlerMapping-->HelloController-->ModelAndView-->ViewResolver-->/hello.jsp
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在pom.xml追加web、jasper定义
org.springframework.boot spring-boot-starter-parent 2.0.1.RELEASE UTF-8 UTF-8 1.8 org.springframework.boot spring-boot-starter-web org.apache.tomcat.embed tomcat-embed-jasper -
在application.properties追加server、viewresolver定义
#serverserver.port=8888#viewresolverspring.mvc.view.prefix=/spring.mvc.view.suffix=.jsp
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编写HelloController
@Controllerpublic class HelloController { @GetMapping("/hello") public ModelAndView execute(){ System.out.println("进入HelloController.execute处理"); ModelAndView mav = new ModelAndView(); mav.setViewName("hello");//hello.jsp mav.getModel().put("msg", "你好"); return mav; } @GetMapping("/hello1") public String execute1(ModelMap model){ System.out.println("进入HelloController.execute1处理"); model.put("msg", "Hello"); return "hello"; }} -
编写hello.jsp
Insert title here SpringBoot JSP应用
${msg}
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编写启动类
@SpringBootApplicationpublic class MyBootApplication { public static void main(String[] args) { SpringApplication.run(MyBootApplication.class, args); }} -
启动测试
http://localhost:8888/hello
Thymeleaf模板响应界面
模板技术是对JSP技术的一个替代品，优点如下：
- 使用简单、方便（JSP复杂）
- 运行机制简单、效率高（JSP-->Servlet-->.class-->HTML输出）
Velocity : hello.vm + VTL
Freemarker：hello.ftl + FTL
Thymeleaf：hello.html + THTL
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在pom.xml中追加boot-starter-thymeleaf定义
org.springframework.boot spring-boot-starter-parent 1.4.7.RELEASE UTF-8 UTF-8 1.8 org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-thymeleaf -
在application.properties追加server配置
server.port=8888
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定义Controller组件
@Controllerpublic class HelloController { @GetMapping("/hello") public ModelAndView execute(){ ModelAndView mav = new ModelAndView(); mav.setViewName("hello");///templates/hello.html mav.getModel().put("msg", "SpringBoot Thymeleaf"); return mav; }} -
定义html模板文件，放在src/main/resources/templates目录中
Insert title here -
定义启动类
@SpringBootApplicationpublic class MyBootApplication { public static void main(String[] args) { SpringApplication.run(MyBootApplication.class, args); }} -
启动程序测试
http://localhost:8888/hello
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1.x版本的Boot需要取消严格的模板标记校验(开始和结束必须匹配)
net.sourceforge.nekohtml nekohtml 在application.properties添加spring.thymeleaf.mode=LEGACYHTML5