小编给大家分享一下怎么运用springboot搭建并部署web项目，希望大家阅读完这篇文章之后都有所收获，下面让我们一起去探讨吧！
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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。
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。
3、设置项目依赖，然后next ，进入下一页 ，设置project name，点击finish完成。
4、进入项目
pom.xml
4.0.0
com.example
springbootdemo
0.0.1-SNAPSHOT
war
springbootdemo
Demo project for Spring Boot
org.springframework.boot
spring-boot-starter-parent
2.0.2.RELEASE
UTF-8
UTF-8
1.8
org.springframework.boot
spring-boot-starter-jdbc
org.springframework.boot
spring-boot-starter-web
org.mybatis.spring.boot
mybatis-spring-boot-starter
1.3.2
org.springframework.boot
spring-boot-devtools
runtime
com.microsoft.sqlserver
mssql-jdbc
runtime
org.springframework.boot
spring-boot-starter-tomcat
provided
org.springframework.boot
spring-boot-starter-test
test
org.springframework.boot
spring-boot-maven-plugin
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
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
org.apache.tomcat.embed
tomcat-embed-jasper
provided
javax.servlet
jstl
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 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" %>
视图渲染
您好，${name}
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
org.springframework.boot
spring-boot-maven-plugin
org.mybatis.generator
mybatis-generator-maven-plugin
1.3.2
${basedir}/src/main/resources/generator/generatorConfig.xml
true
true
在上面pom.xml配置的pugin路径resources/generator 文件夹下添加generatorConfig.xml
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
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
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 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 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 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
tomcat启动之后，访问 http://localhost:8080/springbootdemo/welcome/welcomeIndex 进行验证
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