当我发现把最初的一个demo整的面目全非的时候,突然想要找一个简单的demo做测试,发现与其在原来的上面该,还不如新建一个demo。
官方入门:http://projects.spring.io/spring-boot/
最熟悉maven,这次先做一个maven的demo。
创建maven project。
pom:
<?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.test</groupId>
<artifactId>demo</artifactId>
<version>1.0-SNAPSHOT</version>
<repositories>
<!--<repository>-->
<!--<id>spring-snapshots</id>-->
<!--<url>http://maven.oschina.net/content/groups/public/</url>-->
<!--<snapshots>-->
<!--<enabled>true</enabled>-->
<!--</snapshots>-->
<!--</repository>-->
<repository>
<id>springsource-repos</id>
<name>SpringSource Repository</name>
<url>http://repo.spring.io/release/</url>
</repository>
<repository>
<id>central-repos</id>
<name>Central Repository</name>
<url>http://repo.maven.apache.org/maven2</url>
</repository>
<repository>
<id>central-repos2</id>
<name>Central Repository 2</name>
<url>http://repo1.maven.org/maven2/</url>
</repository>
</repositories>
<dependencyManagement>
<dependencies>
<dependency>
<!-- Import dependency management from Spring Boot -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>1.4.0.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
</configuration>
<dependencies>
<!-- spring热部署-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>springloaded</artifactId>
<version>1.2.6.RELEASE</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>
这里添加了web基础依赖,模板为thymeleaf, 添加一个简单的security配置。
创建src/resources/application.yml:
spring:
profiles:
active: dev
创建src/resources/application-dev.yml:
#用户名 密码配置
security:
user:
name: admin
password: test
创建启动入口hello.SampleController:
package hello;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@SpringBootApplication
public class SampleController {
@RequestMapping("/")
public String home() {
return "redirect:/hello/index";
}
public static void main(String[] args) throws Exception {
SpringApplication.run(SampleController.class, args);
}
}
创建一个Controller: hello.HelloController
package hello;
import hello.entity.User;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.Errors;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.validation.Valid;
import java.util.HashMap;
import java.util.Map;
/**
* Created by miaorf on 2016/8/2.
*/
@RequestMapping("/hello")
@Controller
public class HelloController {
@RequestMapping("/index")
public String hello(Model model, @RequestParam(defaultValue = "Ryan") String name){
model.addAttribute("name",name);
return "index";
}
@ResponseBody
@RequestMapping("/info")
public Map info(@Valid @ModelAttribute("user")User user, Errors errors){
Map map = new HashMap();
if (errors.hasErrors()){
map.put("error",errors.getAllErrors());
}else{
map.put("user",user);
}
return map;
}
}
这里连个路由。一个指向模板文件index,一个返回json并添加了参数校验。
需要使用的实体类:hello.entity.User
package hello.entity;
import org.hibernate.validator.constraints.Length;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Pattern;
/**
* Created by miaorf on 2016/8/2.
*/
public class User {
@NotNull(message = "用户名不能为空")
@Length(min=5, max=20, message="用户名长度必须在5-20之间")
@Pattern(regexp = "^[a-zA-Z_]\\w{4,19}$", message = "用户名必须以字母下划线开头,可由字母数字下划线组成")
private String name;
@NotNull(message = "age不能为空")
private int age;
@NotNull(message = "sex不能为空")
private String sex;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
}
需要用到的模板文件:src/resources/templates/index.html
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Getting Started: Serving Web Content</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<p th:text="'Hello, ' + ${name} + '!'" />
</body>
</html>
github: https://github.com/chenxing12/spring-boot-demo