SpringMvc+SpringData+thymeleaf
接触了SpringBoot也有4个月了，一直没有整理自己的笔记，骚年，接招
我使用的是IntelliJ IDEA 的环境，jdk1.8 SpringBoot采用的是约定由于配置，这一点要牢牢记住，后面我会在解析源码时做解释，首先查看下目录结构 ：
然后开始我们的配置之路
- pom文件，可以直接粘贴
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.tanoak</groupId>
<artifactId>bootjpa</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>bootjpa</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.10.RELEASE</version>
<relativePath/>
</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-aop</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
</configuration>
</plugin>
</plugins>
</build>
</project>
- 导入了相应的依赖，我们开始编写我们的配置文件，application.yml,注意这里有坑，yml文件是以空格控制的，因此要留意空格
server:
port: 8082
session-timeout: 30
tomcat.max-threads: 0
tomcat.uri-encoding: UTF-8
#HTTPS配置
# ssl:
# key-store: keystore.p12
# key-store-password: tanoak
# key-store-type: JKS
# key-alias: tomcat
#数据源配置
spring:
datasource: url : jdbc:mysql://localhost:3306/test
username : root
password : 123123
driverClassName : com.mysql.jdbc.Driver
#SpringData配置
jpa:
database : MYSQL
show-sql : true
hibernate:
ddl-auto : update
naming-strategy : org.hibernate.cfg.ImprovedNamingStrategy
properties:
hibernate: dialect : org.hibernate.dialect.MySQL5Dialect
#thymeleaf配置
thymeleaf:
cache: false
mode: HTML5
encoding: utf-8
content-type: text/html
- 配置都OK，我们开始编写Dao层，配置Bean,这里注意下。我使用了lombok，不会可以参考这篇文章lombok使用
a. entity层 Hello实体
/**
* @Author tanoak
* Created By on 2018/1/19 * @Describe 测试类
*/
@Entity
@Data
public class Hello {
@Id
@GeneratedValue
private Long id ;
@Column(nullable = true)
private String name ;
}
b.Dao层 只需要继承JpaRespsitory类，就具备了基本的CRUD
/**
* @Author tanoak
* Created By on 2018/1/19 * @Describe
*/
@Repository public interface HelloDao extends JpaRepository<Hello ,Long> {
}
c. Service层 正常情况应该是Controller调用Service，这里调试方便省略
d. Controller层
/**
* @Author tanoak
* Created By on 2018/1/19
* @Describe 测试 页面
*/
@Controller
public class HelloController {
@Resource
private HelloDao helloDao;
@RequestMapping("/test")
public String test(Model model){
Hello hello = helloDao.findOne((long) 1);
String name = hello.getName();
model.addAttribute("name",name) ;
return "hello" ;//跳转到 templates下的hello.html
}
}
e. hello.html 注意重点是（xmlns:th="http://www.thymeleaf.org"）这个依赖
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8"/>
<title>Hello html</title>
</head>
<body>
<h1 th:text="${name}">hello</h1>
</body>
</html>
项目书写完毕，接下来我们访问下看是否OK
访问OK！！！，下一篇文章开始thymeleaf模板学习之旅，抛弃传统的jsp
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