1.创建maven工程，在pom文件中添加依赖
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1
2 org.springframework.boot
3 spring-boot-starter-parent
4 1.5.9.RELEASE
5
6
7
8
9 org.springframework.boot
10 spring-boot-starter-web
11
12
13
14 org.springframework.boot
15 spring-boot-starter-test
16
17
18
19 junit
20 junit
21 test
22
23
24
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2.创建项目启动类 StartApplication.java
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1 package com.kelly.controller;
2
3 import org.springframework.boot.SpringApplication;
4 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
5 import org.springframework.context.annotation.ComponentScan;
6 import org.springframework.context.annotation.Configuration;
7
8 @Configuration
9 @EnableAutoConfiguration //自动加载配置信息
10 @ComponentScan("com.kelly")//使包路径下带有注解的类可以使用@Autowired自动注入
11 public class StartApplication {
12 public static void main(String[] args) {
13 SpringApplication.run(StartApplication.class, args);
14 }
15 }
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3.编辑配置文件application.properties及自定义配置文件define.properties
application.properties
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#访问的根路径
server.context-path=/springboot
#端口号
server.port=8081
#session失效时间
server.session-timeout=30
#编码
server.tomcat.uri-encoding=utf-8
test.name=kelly
test.password=admin123
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define.properties
defineTest.pname=test
defineTest.password=test123
4.读取application.properties配置文件中的属性值
FirstController.java
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1 package com.kelly.controller;
2
3 import org.springframework.beans.factory.annotation.Value;
4 import org.springframework.stereotype.Controller;
5 import org.springframework.web.bind.annotation.RequestMapping;
6 import org.springframework.web.bind.annotation.ResponseBody;
7
8
9 @Controller
10 public class FirstController {
11
12 @Value("${test.name}")
13 private String name;
14
15 @Value("${test.password}")
16 private String password;
17
18 @RequestMapping("/")
19 @ResponseBody
20 String home()
21 {
22 return "Hello Springboot!";
23 }
24
25 @RequestMapping("/hello")
26 @ResponseBody
27 String hello()
28 {
29 return "name: " + name + ", " + "password: " + password;
30 }
31 }
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5.打开浏览器，输入 http://localhost:8081/springboot/hello 即可看到结果
6.使用java bean的方式读取自定义配置文件 define.properties
DefineEntity.java
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1 package com.kelly.entity;
2
3 import org.springframework.boot.context.properties.ConfigurationProperties;
4 import org.springframework.context.annotation.PropertySource;
5 import org.springframework.stereotype.Component;
6
7 @Component
8 @ConfigurationProperties(prefix="defineTest")
9 @PropertySource("classpath:define.properties")
10 public class DefineEntity {
11
12 private String pname;
13
14 private String password;
15
16 public String getPname() {
17 return pname;
18 }
19
20 public void setPname(String pname) {
21 this.pname = pname;
22 }
23
24 public String getPassword() {
25 return password;
26 }
27
28 public void setPassword(String password) {
29 this.password = password;
30 }
31
32
33 }
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SecondController.java
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1 package com.kelly.controller;
2
3 import org.springframework.beans.factory.annotation.Autowired;
4 import org.springframework.stereotype.Controller;
5 import org.springframework.web.bind.annotation.RequestMapping;
6 import org.springframework.web.bind.annotation.ResponseBody;
7
8 import com.kelly.entity.DefineEntity;
9
10 @Controller
11 public class SecondController {
12
13 @Autowired
14 DefineEntity defineEntity;
15
16 @RequestMapping("/define")
17 @ResponseBody
18 String define()
19 {
20 return "test.name:" + defineEntity.getPname() + ", test.password:" + defineEntity.getPassword();
21 }
22 }
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7.打开浏览器，访问 http://localhost:8081/springboot/define，可以看到输出结果
补充：我的项目的目录结构
如果遇到问题也可以留言，我如果看到的话，不管会不会都会给与回复的，我们可以共同讨论，一起学习进步。http://www.cnblogs.com/kellyJAVA/p/8030395.html
