从spring boot到spring cloud（三）springmvc+spring+mybatis
本章先用非微服务的方式搭建一个本地springmvc+spring+mybatis，然后再分解成微服务。
选择springmvc+mybatis+mysql驱动。
mybatis的建表和生成对象这里就不说了看一查看以前的
在eclipse中使用MyBatisGenerator生成MyBatis实体类
生成以后产生相应的目录
mapping xml存放目录
entity 数据库bean对象存放目录
dao dao层存放目录
server: port: 8082 spring: datasource: username: root password: ****** url: jdbc:mysql://139.*.*.*:3306/zskxt?zeroDateTimeBehavior=CONVERT_TO_NULL&serverTimezone=UTC&characterEncoding=utf8 driver-class-name: com.mysql.cj.jdbc.Driver type: com.alibaba.druid.pool.DruidDataSource druid: # 下面为连接池的补充设置，应用到上面所有数据源中 # 初始化大小，最小，最大 initial-size: 5 min-idle: 5 max-active: 1000 # 配置获取连接等待超时的时间 max-wait: 600000 # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 time-between-eviction-runs-millis: 60000 # 配置一个连接在池中最小生存的时间，单位是毫秒 min-evictable-idle-time-millis: 300000 validation-query: SELECT 1 FROM DUAL test-while-idle: true test-on-borrow: false test-on-return: false # 打开PSCache，并且指定每个连接上PSCache的大小 pool-prepared-statements: true # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙 max-pool-prepared-statement-per-connection-size: 20 filters: stat,wall use-global-data-source-stat: true # 通过connectProperties属性来打开mergeSql功能；慢SQL记录 connect-properties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=50000 validationQuery: SELECT 'x' mybatis: mapper-locations: classpath:com/zskwebxt/mapping/*.xml #showSqllogging: level: com: example: mapper : debugmapper-locations: classpath:com/zskwebxt/mapping/*.xml 配置成xml存放目录
运行
import org.mybatis.spring.annotation.MapperScan;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.ComponentScan;import org.springframework.scheduling.annotation.EnableAsync;import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;import org.springframework.web.servlet.config.annotation.CorsRegistry;import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;@ComponentScan(basePackages={"com.zskwebxt.*"}) //spring扫描的控制层@SpringBootApplication@EnableAsync@MapperScan("com.zskwebxt.dao") //dao层存放空间public class ZskwebxtApplication implements WebMvcConfigurer{public static void main(String[] args) {SpringApplication.run(ZskwebxtApplication.class, args);}//跨域@Override public void addCorsMappings(CorsRegistry registry) { registry.addMapping("/**") .allowedOrigins("*") .allowedMethods("*") //.allowedMethods("PUT", "DELETE","POST","GET") .allowedHeaders("*").maxAge(3600); }}控制层代码
@RestController@RequestMapping("/getss")public class ssController {@Autowiredprivate zsk_book_smMapper zsk_book_smMapper; //注入dao层对象@RequestMapping("/sousuo") //请求名称@ResponseBodypublic Returnben sousuo(HttpServletRequest request, HttpSession session,@RequestBody Map<String, Object> json) {Returnben returnben = new Returnben();String bookname = json.get("bookname").toString();List<zsk_book_sm> m=zsk_book_smMapper.selectbysousuo(bookname);returnben.setObj(m);returnben.setMsg("成功");returnben.setSuccess("0");return returnben;}}ajax请求
需要引用
<script type="text/javascript" src="js/jquery-3.4.1.min.js"></script>var data = {bookname: $("#bookname").val()}console.log(data)var tj = JSON.stringify(data);$.ajax({url: "http://127.0.0.1:8082/getss/sousuo",data: tj,type: "POST",dataType: "json",contentType: "application/json",success: function(data) {if (data.success == 0) {var html = "";$.each(data.obj, function(i, val) {html +='<li class="searchItem" data-link="/html/'+val.bookid+'.html"> <div class="book"> <a class="cover" href="/html/'+val.bookid+'.html" target="_blank"> <img width="114" height="160" src="http://139.186.70.122:8081/'+val.tp+'"> <span class="png lian"></span> </a> <h5><a href="/html/'+val.bookid+'.html" target="_blank">'+val.bookname+'</a></h5> <p class="author">作者：'+val.zz+'</p> <div class="w-star w-star1"> <span> </span> <span> </span> <span> </span> <span class="no"> </span> <span class="no"> </span> </div> <p class="price"> </p> <p class="disc"><span class="j-cutted" words="72">'+val.msnr+'</span></p> </div> </li>'})$("#J_Container").html(html);$("#xianshi").html('“'+$("#bookname").val()+'”的搜索结果');}}})以上就是简单的 springmvc+spring+mybatis 有什么问题可以私信，后续建立分布式和集群微服务。