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运用springboot搭建并部署web项目

前言

一直以来都是用springmvc+mybatis进行后端接口开发工作,最近闲来无事,根据现有功能需求,用springboot+mybatis部署一套简单的web项目。

所用工具

IntelliJ IDEA 2018.1.4
JDK 1.8
apache-tomcat-8.0.50

所解决的问题

1、如何用idea创建springboot项目 2、如何进行 服务器、数据库、mybatis、视图解析器的配置 3、如何使用mybatis generator 自动生成代码 4、如何使用multipart进行文件上传 5、如何运用springboot的事务 6、如何打包进行tomcat部署 

运用idea创建springboot项目

1、打开IDEA,File -> New -> Project,选择Spring Initializr,然后next。

运用springboot搭建并部署web项目

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2、修改Ariifact,下面的Name、package会自动修改;Packaging有两种模式,一种是Jar,一种是War;因为springboot中自带了tomcat,因此可以将项目打成jar,直接运行;而我现有项目是部署到tomcat上,因此我需要打成war包;然后next。

运用springboot搭建并部署web项目

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3、设置项目依赖,然后next ,进入下一页 ,设置project name,点击finish完成。

运用springboot搭建并部署web项目

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运用springboot搭建并部署web项目

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4、进入项目

运用springboot搭建并部署web项目

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pom.xml

<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">     <modelVersion>4.0.0</modelVersion>      <groupId>com.example</groupId>     <artifactId>springbootdemo</artifactId>     <version>0.0.1-SNAPSHOT</version>     <packaging>war</packaging>      <name>springbootdemo</name>     <description>Demo project for Spring Boot</description>      <parent>         <groupId>org.springframework.boot</groupId>         <artifactId>spring-boot-starter-parent</artifactId>         <version>2.0.2.RELEASE</version>         <relativePath/> <!-- lookup parent from repository -->     </parent>      <properties>         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>         <java.version>1.8</java.version>     </properties>      <dependencies>         <dependency>             <groupId>org.springframework.boot</groupId>             <artifactId>spring-boot-starter-jdbc</artifactId>         </dependency>         <dependency>             <groupId>org.springframework.boot</groupId>             <artifactId>spring-boot-starter-web</artifactId>         </dependency>         <dependency>             <groupId>org.mybatis.spring.boot</groupId>             <artifactId>mybatis-spring-boot-starter</artifactId>             <version>1.3.2</version>         </dependency>          <dependency>             <groupId>org.springframework.boot</groupId>             <artifactId>spring-boot-devtools</artifactId>             <scope>runtime</scope>         </dependency>         <dependency>             <groupId>com.microsoft.sqlserver</groupId>             <artifactId>mssql-jdbc</artifactId>             <scope>runtime</scope>         </dependency>         <dependency>             <groupId>org.springframework.boot</groupId>             <artifactId>spring-boot-starter-tomcat</artifactId>             <scope>provided</scope>         </dependency>         <dependency>             <groupId>org.springframework.boot</groupId>             <artifactId>spring-boot-starter-test</artifactId>             <scope>test</scope>         </dependency>     </dependencies>      <build>         <plugins>             <plugin>                 <groupId>org.springframework.boot</groupId>                 <artifactId>spring-boot-maven-plugin</artifactId>             </plugin>         </plugins>     </build> </project> 

无配置文件的springmvc

通过两个例子:1、http请求访问并渲染页面 2、http请求返回json字符串
-配置数据源、视图渲染
-添加视图渲染pom依赖
-创建WelcomeController、welcome.jsp

新增之后的项目结构

运用springboot搭建并部署web项目

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application.yml 配置数据源 和 视图渲染

# 数据源、视图配置 spring:   datasource:       url: jdbc:sqlserver://xx:1433;DatabaseName=xx       username: xx       password: xx       driver-class-name: com.microsoft.sqlserver.jdbc.SQLServerDriver   mvc:     view:       prefix: /WEB-INF/views/       suffix: .jsp 

pom.xml新增视图渲染依赖

<!-- 使用 jsp 必要依赖 -->         <dependency>             <groupId>org.apache.tomcat.embed</groupId>             <artifactId>tomcat-embed-jasper</artifactId>             <scope>provided</scope>         </dependency>         <dependency>             <groupId>javax.servlet</groupId>             <artifactId>jstl</artifactId>         </dependency> 

创建WelcomeController

package com.example.springbootdemo.web;  import com.example.springbootdemo.entity.Welcome; import com.example.springbootdemo.response.Response; import com.example.springbootdemo.response.ResponseCode; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.servlet.ModelAndView; import java.util.ArrayList; import java.util.List;  @Controller @RequestMapping("/welcome") public class WelcomeController {     /**      * 访问welcome.jsp页面      * @return      */     @RequestMapping("welcomeIndex")     public ModelAndView welcomeIndex(){         ModelAndView mv = new ModelAndView();         mv.setViewName("welcome");         mv.addObject("name","xx");         return mv;     }      /**      * 返回json字符串      * @return      */     @RequestMapping("getWelcomeInfo")     @ResponseBody     public Response getWelcomeInfo(){         /**          * 测试数据          */         List<Welcome> welcomes = new ArrayList<>();         Welcome w1 = new Welcome();         w1.setId("1");         w1.setName("xx1");         w1.setAge(11);         w1.setGender("女");          Welcome w2 = new Welcome();         w2.setId("2");         w2.setName("xx2");         w2.setAge(22);         w2.setGender("男");         welcomes.add(w1);         welcomes.add(w2);          Response response = new Response();         response.setData(welcomes);         response.setRetcode(ResponseCode.SUCCESS);         response.setRetdesc("Success");         return response;     } } 

创建welcome.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head>     <title>视图渲染</title> </head> <body>     您好,${name} </body> </html> 

启动项目,并访问
http://localhost:8080/welcome/getWelcomeInfo
http://localhost:8080/welcome/welcomeIndex

使用mybatis generator自动生成代码

用于为表创建 *Mapper.xml、model、dao文件

在pom.xml 添加mybatis generator 自动生成代码插件

<build>         <plugins>             <plugin>                 <groupId>org.springframework.boot</groupId>                 <artifactId>spring-boot-maven-plugin</artifactId>             </plugin>             <!-- mybatis generator 自动生成代码插件 -->             <plugin>                 <groupId>org.mybatis.generator</groupId>                 <artifactId>mybatis-generator-maven-plugin</artifactId>                 <version>1.3.2</version>                 <configuration>                     <configurationFile>${basedir}/src/main/resources/generator/generatorConfig.xml</configurationFile>                     <overwrite>true</overwrite>                     <verbose>true</verbose>                 </configuration>             </plugin>         </plugins>     </build> 

在上面pom.xml配置的pugin路径resources/generator 文件夹下添加generatorConfig.xml

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE generatorConfiguration         PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"         "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"> <generatorConfiguration>     <!-- 数据库驱动:选择你的本地硬盘上面的数据库驱动包-->     <classPathEntry  location="C:/Users/.m2/repository/com/microsoft/sqlserver/mssql-jdbc/6.2.2.jre8/mssql-jdbc-6.2.2.jre8.jar"/>     <context id="DB2Tables"  targetRuntime="MyBatis3">         <commentGenerator>             <property name="suppressDate" value="true"/>             <!-- 是否去除自动生成的注释 true:是 : false:否 -->             <property name="suppressAllComments" value="true"/>         </commentGenerator>         <!--数据库链接URL,用户名、密码 -->         <jdbcConnection driverClass="com.microsoft.sqlserver.jdbc.SQLServerDriver" connectionURL="jdbc:sqlserver://xx:1433;DatabaseName=xx" userId="xx" password="xx">         </jdbcConnection>         <javaTypeResolver>             <property name="forceBigDecimals" value="false"/>         </javaTypeResolver>         <!-- 生成模型的包名和位置-->         <javaModelGenerator targetPackage="com.example.springbootdemo.entity" targetProject="src/main/java">             <property name="enableSubPackages" value="true"/>             <property name="trimStrings" value="true"/>         </javaModelGenerator>         <!-- 生成映射文件的包名和位置-->         <sqlMapGenerator targetPackage="mybatis" targetProject="src/main/resources">             <property name="enableSubPackages" value="true"/>         </sqlMapGenerator>         <!-- 生成DAO的包名和位置-->         <javaClientGenerator type="XMLMAPPER" targetPackage="com.example.springbootdemo.mapper" targetProject="src/main/java">             <property name="enableSubPackages" value="true"/>         </javaClientGenerator>         <!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名-->         <table tableName="xx" domainObjectName="StudentBinding" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>     </context> </generatorConfiguration> 

使用maven中的mybatis-generator:generate根据数据库里面表生产相关的类
Edit Configurations -> 添加 -> Maven

运用springboot搭建并部署web项目

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运用springboot搭建并部署web项目

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运用springboot搭建并部署web项目

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运用springboot搭建并部署web项目

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运用springboot搭建并部署web项目

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配置mybatis

在application.yml 中添加mybatis的配置

# mybatis配置 mybatis:   mapper-locations: classpath*:mybatis/*Mapper.xml   type-aliases-package: com.example.springbootdemo.entity 

在StudentBindingMapper.java中添加 @Repository(“studentBindingMapper”)注解才能使用@MapperScan扫描到

@Repository("studentBindingMapper") public interface StudentBindingMapper {} 

在SpringbootdemoApplication.java添加@MapperScan

package com.example.springbootdemo; import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication;  @SpringBootApplication @MapperScan("com.example.springbootdemo.mapper") public class SpringbootdemoApplication {      public static void main(String[] args) {         SpringApplication.run(SpringbootdemoApplication.class, args);     } } 

添加service、controller层

项目层级

运用springboot搭建并部署web项目

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添加StudentBindingService

package com.example.springbootdemo.service; import com.example.springbootdemo.entity.StudentBinding; import java.util.List;  public interface StudentBindingService {     int deleteByPrimaryKey(Long id);     int insert(StudentBinding record);     int insertSelective(StudentBinding record);     StudentBinding selectByPrimaryKey(Long id);     int updateByPrimaryKeySelective(StudentBinding record);     int updateByPrimaryKey(StudentBinding record);     void validTransaction(Long id);     List<StudentBinding> getStudentBindByQuery(StudentBinding record); } 

添加StudentBindingServiceImpl

package com.example.springbootdemo.service.impl;  import com.example.springbootdemo.entity.StudentBinding; import com.example.springbootdemo.mapper.StudentBindingMapper; import com.example.springbootdemo.service.StudentBindingService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.util.List;  @Service(value = "studentBindingService") public class StudentBindingServiceImpl implements StudentBindingService {     @Autowired     private StudentBindingMapper studentBindingMapper;      @Override     public int deleteByPrimaryKey(Long id) {         return studentBindingMapper.deleteByPrimaryKey(id);     }      @Override     public int insert(StudentBinding record) {         return studentBindingMapper.insert(record);     }      @Override     public int insertSelective(StudentBinding record) {         return studentBindingMapper.insertSelective(record);     }      @Override     public StudentBinding selectByPrimaryKey(Long id) {         return studentBindingMapper.selectByPrimaryKey(id);     }      @Override     public int updateByPrimaryKeySelective(StudentBinding record) {         return studentBindingMapper.updateByPrimaryKeySelective(record);     }      @Override     public int updateByPrimaryKey(StudentBinding record) {         return studentBindingMapper.updateByPrimaryKey(record);     }      @Override     @Transactional     public void validTransaction(Long id){         // 删除之后,插入该id的数据         studentBindingMapper.deleteByPrimaryKey(id);          StudentBinding record = new StudentBinding();         record.setId(id);         studentBindingMapper.insertSelective(record);     }      @Override     public List<StudentBinding> getStudentBindByQuery(StudentBinding record) {         return studentBindingMapper.getStudentBindByQuery(record);     } } 

新增StudentBindingController

package com.example.springbootdemo.web;  import com.example.springbootdemo.entity.StudentBinding; import com.example.springbootdemo.response.Response; import com.example.springbootdemo.response.ResponseCode; import com.example.springbootdemo.service.StudentBindingService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.servlet.ModelAndView; import java.io.File; import java.io.IOException; import java.util.List;  @Controller @RequestMapping(value = "/studentBind") public class StudentBindingController {     @Autowired     private StudentBindingService studentBindingService;      /**      * 根据请求参数,删除绑定学生信息      * @param id      * @return      */     @RequestMapping("deleteByPrimaryKey")     @ResponseBody     public Response deleteByPrimaryKey(Long id){         Response response = new Response();         if(id==null){             response.setRetcode(ResponseCode.PARAMARTER_ERROR);             response.setRetdesc("参数错误");             return response;         }          try{             studentBindingService.deleteByPrimaryKey(id);             response.setRetcode(ResponseCode.SUCCESS);             response.setRetdesc("删除成功");         }catch (Exception e){             e.printStackTrace();             response.setRetcode(ResponseCode.FAILED);             response.setRetdesc("删除异常");         }         return response;     }      /**      * 根据请求参数,添加绑定学生信息      * @param record      * @return      */     @RequestMapping("insertSelective")     @ResponseBody     public Response insertSelective(StudentBinding record){         Response response = new Response();         if(record==null){             response.setRetcode(ResponseCode.PARAMARTER_ERROR);             response.setRetdesc("参数错误");             return response;         }          try{             studentBindingService.insertSelective(record);             response.setRetcode(ResponseCode.SUCCESS);             response.setRetdesc("添加成功");         }catch (Exception e){             e.printStackTrace();             response.setRetcode(ResponseCode.FAILED);             response.setRetdesc("添加异常");         }         return response;     }      /**      * 根据请求参数,查询绑定学生信息      * @param id      * @return      */     @RequestMapping("selectByPrimaryKey")     @ResponseBody     public Response selectByPrimaryKey(Long id){         Response response = new Response();         if(id==null){             response.setRetcode(ResponseCode.PARAMARTER_ERROR);             response.setRetdesc("参数错误");             return response;         }          try{             StudentBinding studentBinding = studentBindingService.selectByPrimaryKey(id);             response.setData(studentBinding);             response.setRetcode(ResponseCode.SUCCESS);             response.setRetdesc("查询成功");         }catch (Exception e){             e.printStackTrace();             response.setRetcode(ResponseCode.FAILED);             response.setRetdesc("查询异常");         }         return response;     }      /**      * 验证@Transaction注解是否好用      * @param id      * @return      */     @RequestMapping("validTransaction")     @ResponseBody     public Response validTransaction(Long id){         Response response = new Response();         if(id==null){             response.setRetcode(ResponseCode.PARAMARTER_ERROR);             response.setRetdesc("参数错误");             return response;         }          try{             studentBindingService.validTransaction(id);             response.setRetcode(ResponseCode.SUCCESS);         }catch (Exception e){             e.printStackTrace();             response.setRetcode(ResponseCode.FAILED);         }         return response;     }      /**      * 渲染jsp页面      * @return      */     @RequestMapping("welcomeIndex")     public ModelAndView welcomeIndex(){         List<StudentBinding> studentBindings = studentBindingService.getStudentBindByQuery(new StudentBinding()); //        model.addAttribute("studentBindings",studentBindings);         ModelAndView mv = new ModelAndView();         mv.setViewName("welcome");         mv.addObject("studentBindings",studentBindings);         return mv;     }      /**      * 跳转到上传文件页面      * @return      */     @RequestMapping("multipartIndex")     public String multipartIndex(){         return "multipart-index";     }      /**      * 上传文件到指定目录      * @param file      * @return      */     @RequestMapping("/upload")     @ResponseBody     public Response upload(@RequestParam("file") MultipartFile file){         Response response = new Response();         if (file.isEmpty()){             response.setRetcode(ResponseCode.PARAMARTER_ERROR);             response.setRetdesc("参数错误");             return response;         }          try {             String filePath = "D://ceshi//upload//";             File dir = new File(filePath);             if(!dir.isDirectory()){                 dir.mkdir();             }              String fileOriginalName = file.getOriginalFilename();             File writeFile = new File(filePath + fileOriginalName);             //文件写入磁盘             file.transferTo(writeFile);              response.setRetcode(ResponseCode.SUCCESS);             response.setRetdesc("上传成功");         } catch (IOException e) {             e.printStackTrace();             response.setRetcode(ResponseCode.FAILED);             response.setRetdesc("上传失败");         }          return response;     } } 

重启项目之后,就可以访问各个接口

springboot配置事务

springboot配置事务有两种方式
1、在SpringbootdemoApplication.java项目入口,添加@EnableTransactionManagement的注解用来开启事务
2、在service实现类上添加@Transactional注解,那么该类的所有方法都进行事务管理;也可以直接在service实现类的方法上直接添加@Transactional注解,那么只对该方法进行事务管理,上面代码中有对方法添加事务的例子

springboot打包进行tomcat部署

Edit Configuration -> Maven -> 添加 ->启动 -> 复制war包 -> tomcat webapp ->修改war包的名字 -> tomcat bin -> startup.bat

运用springboot搭建并部署web项目

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运用springboot搭建并部署web项目

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运用springboot搭建并部署web项目

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运用springboot搭建并部署web项目

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运用springboot搭建并部署web项目

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tomcat启动之后,访问http://localhost:8080/springbootdemo/welcome/welcomeIndex进行验证

运用springboot搭建并部署web项目

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