idea创建spring boot+mybatis（oracle）+themeleaf项目

1.新建项目

选择idea已经有的spring initializr

next，然后填写项目命名，包名

然后next，选择所需要的依赖

然后一路next，finish，项目新建成功，然后可以删除下面的三个文件和包，没卵用，删掉看的舒服

然后就是建项目结构，上面java包下的可以直接new--package，但是resources的直接new--directory会变成如下的长的的包名，所以需要设置一下，点击上面的那个小齿轮，然后将下图的设置的 √ 去掉，然后就可以直接new--directory就是树状结构了

完整的项目结构是这样的

2.添加依赖和其他配置

pom.xml:注释的是freemarker的模板依赖以及mysql的依赖，有需要的可以换成这个或其他的，然后还配了一些热部署，以及扫描xml的

[html] view plain copy

1.   

<?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>prvi.chen</groupId>  <artifactId>springdemo</artifactId>  <version>0.0.1-SNAPSHOT</version>  <packaging>jar</packaging>   <name>spring-demo</name>  <description>Demo project for Spring Boot</description>   <parent>  <groupId>org.springframework.boot</groupId>  <artifactId>spring-boot-starter-parent</artifactId>  <version>1.5.9.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.mybatis.spring.boot</groupId>  <artifactId>mybatis-spring-boot-starter</artifactId>  <version>1.3.1</version>  </dependency>  <dependency>  <groupId>org.springframework.boot</groupId>  <artifactId>spring-boot-starter-thymeleaf</artifactId>  </dependency>  <dependency>  <groupId>net.sourceforge.nekohtml</groupId>  <artifactId>nekohtml</artifactId>  <version>1.9.22</version> </dependency> <!--<dependency>--> <!--<groupId>org.springframework.boot</groupId>--> <!--<artifactId>spring-boot-starter-freemarker</artifactId>--> <!--</dependency>--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>com.oracle</groupId> <artifactId>ojdbc6</artifactId> <version>11.2.0.1.0</version> </dependency> <!--<dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency>--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-pool2</artifactId> <version>2.2</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.13</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.2</version> <configuration> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> </plugin> </plugins> <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> </includes> <!-- 是否替换资源中的属性--> <filtering>false</filtering> </resource> </resources> </build> </project> 

SpringbootDemoApplication:程序入口，顺便配置扫描包，项目运行的时候直接run或者debug这个就行了

package com.jsiec;

import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.ComponentScan;  @SpringBootApplication @MapperScan("com.jsiec.mapper") @ComponentScan({"com.jsiec.controller","com.jsiec.service"}) public class SpringbootDemoApplication {   public static void main(String[] args) {  SpringApplication.run(SpringbootDemoApplication.class, args);  } }

application.properties:这个是配置文件，可以配置数据库相关设置，包括数据库连接池设置（我没配连接池），然后还有一些模板加载页的配置之类的

spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver
spring.datasource.url=jdbc:oracle:thin:@localhost:1521:ORCL spring.datasource.username=DEMO spring.datasource.password=123456789  ######################################################## ###THYMELEAF (ThymeleafAutoConfiguration) ######################################################## spring.thymeleaf.prefix=classpath:/templates/ spring.thymeleaf.suffix=.html spring.thymeleaf.mode=HTML5 #spring.thymeleaf.encoding=UTF-8 # ;charset=<encoding> is added #spring.thymeleaf.content-type=text/html # set to false for hot refresh #页面热加载 spring.thymeleaf.cache=false  #修改tomcat的默认的端口号，将8080改为8888 server.port=8888

controller:几种传参方法，自己挑一种用用，里面的一些mapper，entity是mybatis自动生成的，就不放了

package priv.chen.controller;

import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import priv.chen.entity.Test; import priv.chen.entity.User; import priv.chen.mapper.TestMapper; import priv.chen.mapper.UserMapper;  import java.util.List; import java.util.Map;  /**  * Created by Administrator on 2017/12/19.  */ @Controller @RequestMapping("/test") public class TestController {  @Autowired private UserMapper userMapper;  @Autowired private TestMapper testMapper;  @RequestMapping("/index")  public Object index(){  return "index";  }   @ResponseBody  @RequestMapping("/hello")  public Object hello(){  return "say hello";  }    @RequestMapping("/world")  public Object world(Model model) {  model.addAttribute("name", "张一");  return "/test/world";  }   @RequestMapping("/getUser")  public Object getUser(Model model,User user){  List<User> list = userMapper.getAll(user);  Test test = testMapper.selectByPrimaryKey("1");  model.addAttribute("list",list);  model.addAttribute("test",test);  return "/test/test";  }   @RequestMapping("/test1")  public String test1(Test test){ test = testMapper.selectByPrimaryKey("1"); return "/test/test"; } @RequestMapping("/test2") public String test2(Map<String,Object> map){ map.put("name", "张二"); return "/test/test"; } @RequestMapping("/test3") public String test3(ModelMap modelMap){ modelMap.addAttribute("name","张三"); return "/test/test"; } @RequestMapping("/test4") public String test4(Model model){ model.addAttribute("name","张四"); return "/test/test"; } @RequestMapping("/test5") public String test5(ModelMap modelMap){ modelMap.put("name","张五"); return "/test/test"; } @RequestMapping("/test6") public String test6(User user,Map< String, Object> map){ List<User> list = userMapper.getAll(user); map.put("list",list); return "/test/test"; } } 

然后就html页面，用的是themeleaf，注释的是用的其他传参方法

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"> <head>  <meta charset="UTF-8"/>  <title>Title</title> </head> <body> <!--<div>  姓名：<span th:text="${test.name}"></span><br/> </div>--> <!--<div>  姓名：<span th:text="${name}"></span><br/> </div>--> <div th:each="user:${list}">  姓名：<span th:text="${user.name}"></span><br/> </div> </body>  </html>

下面是运行效果：

最后放一张图