如何查看网站的流量,免费建站的网站哪个好,做网站建设要学多久,学习搭建网站主要内容 1. SpringBoot简介 2. 构建springboot工程 3. springboot接口返回json 4. springboot热部署 5. springboot资源属性配置 6. springboot整合模板引擎 7. springboot异常处理 8. springboot整合MyBatis 9. springboot整合redis 10. springboot整合定时任务 11. springbo… 主要内容 1. SpringBoot简介 2. 构建springboot工程 3. springboot接口返回json 4. springboot热部署 5. springboot资源属性配置 6. springboot整合模板引擎 7. springboot异常处理 8. springboot整合MyBatis 9. springboot整合redis 10. springboot整合定时任务 11. springboot整合异步任务以及使用场景 12. springboot中如何使用拦截器 1. SpringBoot简介 SpringBoot特点 基于spring 使开发者快速入门门槛较低Springboot可以创建独立运行的应用而不依赖于容器不需要打包成war包可以放入tomcat直接运行提供maven极简配置缺点是会引入很多你不需要的包根据项目来依赖从而配置spring需要什么配什么提供可视化的相关功能方便监控比如性能应用的健康程度等简化配置不用再看过多的xml为微服务SpringCloud铺路 SpringBoot可以整合很多各式各样的框架来构建微服务比如dubbo thrift等等 2. 构建springboot工程 Reference: https://blog.csdn.net/typa01_kk/article/details/76696618 3. springboot接口返回json SpringBoot构造并返回一个json对象 package com.firsttry.helloworld.controller;import com.firsttry.helloworld.pojo.IMoocJSONResult;
import com.firsttry.helloworld.pojo.User;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;import java.util.Date;//Controller
RestController //RestController Controller ResponseBody
RequestMapping(/user)
public class UserController {RequestMapping(/getUser)/*表示将返回的数据封装成json字符串*///ResponseBodypublic User getUser(){User u new User();u.setName(Alisa);u.setAge(21);u.setBirthday(new Date());u.setPassword(111111111);u.setDesc(hello I hope I can be much happier, hahahah);return u;}RequestMapping(/getUserJson)/*表示将返回的数据封装成json字符串*///ResponseBodypublic IMoocJSONResult getUserJson(){User u new User();u.setName(Alisa);u.setAge(21);u.setBirthday(new Date());u.setPassword(111111);u.setDesc(emmmmmm11122222);return IMoocJSONResult.ok(u);}
} Jackson的基本演绎法 package com.firsttry.helloworld.pojo;import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonInclude;import java.util.Date;public class User {private String name;JsonIgnoreprivate String password;private Integer age;JsonFormat(pattern yyyy-MM-dd hh:mm:ss a, locale Aus, timezone GMT10)private Date birthday;JsonInclude(JsonInclude.Include.NON_NULL)private String desc;public String getName() {return name;}public void setName(String name) {this.name name;}public String getPassword() {return password;}public void setPassword(String password) {this.password password;}public Integer getAge() {return age;}public void setAge(Integer age) {this.age age;}public Date getBirthday() {return birthday;}public void setBirthday(Date birthday) {this.birthday birthday;}public String getDesc() {return desc;}public void setDesc(String desc) {this.desc desc;}
} 4. springboot热部署 SpringBoot使用devtools进行热部署不需要重启服务器就可以部署文件 Reference: https://www.jianshu.com/p/0e3efd50e3e3 5. springboot资源属性配置 6. springboot整合模板引擎 1. springBoot整合freemarker pom.xml !--引入freemarker模板依赖--dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-freemarker/artifactId/dependencyapplication.properties ########
#
# freemarker 静态资源配置
#
########
# 设定ftl文件路径
spring.freemarker.template-loader-pathclasspath:/templates
# 关闭缓存即时刷新上线生产环境需改为true
spring.freemarker.cachefalse
spring.freemarker.charsetUTF-8
spring.freemarker.check-template-locationtrue
spring.freemarker.content-typetext/html
spring.freemarker.expose-request-attributestrue
spring.freemarker.expose-session-attributestrue
spring.freemarker.request-context-attributerequest
spring.freemarker.suffix.ftlfreemarkerController package com.firsttry.helloworld.controller;import com.firsttry.helloworld.pojo.Resource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;Controller
RequestMapping(ftl)
public class FreemarkerController {Autowiredprivate Resource resource;RequestMapping(/index)public String index(ModelMap map){map.addAttribute(resource, resource);return freemarker/index;}RequestMapping(center)public String center(){return freemarker/center/center;}} 2. springBoot整合thymeleaf pom.xml !--引入thymeleaf模板依赖--dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-thymeleaf/artifactId/dependencyapplication.properties ########
#
# thymeleaf 静态资源配置
#
########
spring.thymeleaf.prefixclasspath:/templates/
spring.thymeleaf.suffix.html
spring.thymeleaf.modeHTML5
spring.thymeleaf.encodingUTF-8
spring.thymeleaf.servlet.content-typetext/html
# 关闭缓存即时刷新上线生产环境需要改为true
spring.thymeleaf.cachefalseThymeleafController package com.firsttry.helloworld.controller;import com.firsttry.helloworld.pojo.User;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;import java.util.ArrayList;
import java.util.Date;
import java.util.List;Controller
RequestMapping(th)
public class ThymeleafController {RequestMapping(/index)public String index(ModelMap map){map.addAttribute(name, thymeleaf-imooc);return thymeleaf/index;}RequestMapping(center)public String center() {return thymeleaf/center/center;}RequestMapping(test)public String test(ModelMap map) {User u new User();u.setName(manager);u.setAge(10);u.setPassword(123465);u.setBirthday(new Date());u.setDesc(font colorgreenbhello imooc/b/font);map.addAttribute(user, u);User u1 new User();u1.setAge(19);u1.setName(imooc);u1.setPassword(123456);u1.setBirthday(new Date());User u2 new User();u2.setAge(17);u2.setName(superadmin);u2.setPassword(123456);u2.setBirthday(new Date());ListUser userList new ArrayListUser();userList.add(u);userList.add(u1);userList.add(u2);map.addAttribute(userList, userList);return thymeleaf/test;}PostMapping(postform)public String postform(User u) {System.out.println(姓名 u.getName());System.out.println(年龄 u.getAge());return redirect:/th/test;}
} thymeleaf常用标签的使用方法 基本使用方式对象引用方式时间类型转换text与utext的比较 utext: html代码会解析成对应的css代码URL引入静态资源条件判断th:ifth:unless 与 th:if 的使用循环 th:eachtext 与 utextth:switch 与 th:case 7. springboot异常处理 页面跳转形式ajax形式统一返回异常的形式 8. springboot整合MyBatis 使用generatorConfig生成mapper以及pojo实现基于mybatis的CRUD功能整合mybatis-pagehelper实现分页自定义mapper的实现 SpringBoot整合持久层事务为数据库操作设定事务级别 事务隔离级别DEFAULT READ_UNCOMMITTED READ_COMMITTED REPEATABLE_READ SERIALIZABLE -事务的传播行为REQUIRED SUPPORTS MANDATORY REQUIRES_NEW NOT_SUPPORTED NEVER NESTED 9. springboot整合redis pom.xml引入需要的依赖资源文件中对redis进行配置引入redis工具类 10. springboot整合定时任务task 使用注解EbableScheduling开启定时任务会自动扫描定义Component作为组件被容器扫描表达式生成地址: https://cron.qqe2.com/ 11. springboot整合异步任务以及使用场景 使用注解EnableAsync开启异步会自动扫描定义Component Async作为组件被容器扫描执行 12. springboot中如何使用拦截器 使用注解Configuration配置拦截器继承WebMvcConfigurerAdapter重写addInterceptors添加需要的拦截器地址 本文主要参考源码https://github.com/leechenxiang/imooc-springboot-starter © 著作权归作者所有,转载或内容合作请联系作者 喜欢的朋友记得点赞、收藏、关注哦
