Spring-Boot框架初步搭建

时间:2022-05-28 02:12:30

一、简介

SpringMVC是非常伟大的框架,开源,发展迅速。优秀的设计必然会划分、解耦。所以,spring有很多子项目,比如core、context、bean、mvc等。这对知根底的人来说很简单明了,然而springmvc就是为了傻瓜式的操作而发明的。对于初学springmvc的人来说,想要入手就开发需要拷贝一连串的dependency而不知道这个是干嘛,不知道是不是少了依赖。像我刚接触springmvc的时候到处百度教程而发现各有不同,于是复制了一个又一个代码却不能自己设置,根本原因是不了解各个依赖的包。

Spring-Boot 正是为了解决繁复的代码配置而产生的。Spring-Boot 也是基于java-base 开发的代码,及不用xml文件配置,所有代码都由java来完成。还可以加入Groovy的动态语言执行。

 二、搭建一个基本的web-mvc 项目

2.1 Configure environment

  1. java 1.8+
  2. maven 3.3+
  3. spring-boot 1.3.5
  4. idea 15
  5. Thymeleaf 3

2.2 Start

在idea中,选择new-》maven创建一个空的maven项目,比如名字springboot-test。

2.2.1pom.xml

设定java版本:

?
1
2
3
4
5
<properties>
 
    <java.version>1.8</java.version>
 
</properties>

添加依赖版本管理dependencyManagement

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
<dependencyManagement>
 
    <dependencies>
 
      <dependency>
 
        <!-- Import dependency management from Spring Boot -->
 
        <groupId>org.springframework.boot</groupId>
 
        <artifactId>spring-boot-dependencies</artifactId>
 
        <version>1.3.5.RELEASE</version>
 
        <type>pom</type>
 
        <scope>import</scope>
 
      </dependency>
 
    </dependencies>
 
</dependencyManagement>

添加spring-web项目依赖

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
<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>
 
</dependencies>

添加build-plugin

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
<build>
 
    <plugins>
 
      <plugin>
 
        <groupId>org.springframework.boot</groupId>
 
        <artifactId>spring-boot-maven-plugin</artifactId>
 
        <configuration>
 
          <fork>true</fork>
 
        </configuration>
 
      </plugin>
 
    </plugins>
 
 
 
</build>

如此,一个简单的restful的webservice的项目就搭建好了。如果想要支持视图渲染,即jsp、freeMark、velocity等,添加对应的依赖即可。比如,我使用Thymeleaf模板:

?
1
2
3
4
5
6
7
<dependency>
 
      <groupId>org.springframework.boot</groupId>
 
      <artifactId>spring-boot-starter-thymeleaf</artifactId>
 
</dependency>

2.2.2 创建java代码

如果新建项目的名字是:springboot-test. 则创建包springboot-test/src/main/java/com/test.

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
com
 +- example
   +- myproject
     +- Application.java
     |
     +- domain
     |  +- Customer.java
     |  +- CustomerRepository.java
     |
     +- service
     |  +- CustomerService.java
     |
     +- web
       +- CustomerController.java

com.test是我们的基本包名。下面创建配置类com.test.AppConfig。

package com.test;

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
import org.springframework.boot.SpringApplication;
 
import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 
 
/**
 
 * Created by miaorf on 2016/6/19.
 
 */
 
@SpringBootApplication
 
public class AppConfig {
 
  public static void main(String[] args) {
 
    SpringApplication.run(AppConfig.class);
 
  }
 
}

@SpringBootApplication 标注启动配置入口,可以发现通过一个main方法启动。使用这个注解的类必须放置于最外层包中,因为默认扫描这个类以下的包。否则需要自己配置@ComponentScan。 

这样,配置基本完成了。下面开发控制层controller:

创建com.test.controller.HelloController。

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
package com.test.controller;
 
import org.springframework.stereotype.Controller;
 
import org.springframework.ui.Model;
 
import org.springframework.web.bind.annotation.RequestMapping;
 
import org.springframework.web.bind.annotation.ResponseBody;
 
 
 
import java.util.HashMap;
 
import java.util.Map;
 
 
 
/**
 
 * Created by miaorf on 2016/6/19.
 
 */
 
@Controller
 
public class HelloController {
 
 
 
  @RequestMapping("/index")
 
  public String index(Model model){
 
 
 
    model.addAttribute("name","Ryan");
 
 
 
    return "index";
 
  }
 
  @RequestMapping("/json")
 
  @ResponseBody
 
  public Map<String,Object> json(){
 
    Map<String,Object> map = new HashMap<String,Object>();
 
    map.put("name","Ryan");
 
    map.put("age","18");
 
    map.put("sex","man");
 
    return map;
 
  }
 
}

创建视图代码:

视图默认放在springboot-test\src\main\resources\templates**.

所以创建springboot-test\src\main\resources\templates\index.html

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
<!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>

D:\workspace\springboot\springboot-test\src\main\webapp\hello.html

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
<!DOCTYPE HTML>
 
<html>
 
<head>
 
  <title>Getting Started: Serving Web Content</title>
 
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 
</head>
 
<body>
 
hello, This is static page. not resolve by server, just the html.
 
</body>
 
</html>

2.2.3 run

启动方式多种,可以启动main方法,也可以通过命令行启动:

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
D:\temp\springboot-test>mvn spring-boot:run
[INFO] Scanning for projects...
[WARNING]
[WARNING] Some problems were encountered while building the effective model for com.test:springboot-test:jar:1.0-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.springframework.boot:spring-boot-maven-plugin is missing. @ line 49, column 21
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING]
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building springboot-test 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] >>> spring-boot-maven-plugin:1.3.5.RELEASE:run (default-cli) > test-compile @ springboot-test >>>
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ springboot-test ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ springboot-test ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ springboot-test ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory D:\temp\springboot-test\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ springboot-test ---
[INFO] No sources to compile
[INFO]
[INFO] <<< spring-boot-maven-plugin:1.3.5.RELEASE:run (default-cli) < test-compile @ springboot-test <<<
[INFO]
[INFO] --- spring-boot-maven-plugin:1.3.5.RELEASE:run (default-cli) @ springboot-test ---
[INFO] Attaching agents: []
 
 .  ____     _      __ _ _
 /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/ ___)| |_)| | | | | || (_| | ) ) ) )
 ' |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::    (v1.3.5.RELEASE)

浏览器访问:localhost:8080/index

Spring-Boot框架初步搭建

Spring-Boot框架初步搭建

Spring-Boot框架初步搭建

demo下载路径:springboot.rar

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。

原文链接:http://www.cnblogs.com/woshimrf/p/5602051.html