Spring Boot开发入门-优快云博客

本文介绍如何使用IntelliJ IDEA和Spring Boot快速搭建一个包含RESTful接口的简单网页应用。主要内容涵盖项目创建、目录结构组织、实体类定义、控制器编写等步骤，并提供了具体的代码实例。

使用IDEA基于Spring boot创建一个简单的网页

RESTful 接口的 Web服务

使用IDEA基于Spring boot创建一个简单的网页

首先创建项目

然后勾选Spring Initializer

完善创建的项目信息

配置组件

完成创建

点击maven，然后点击设置进行maven仓库的配置

在template下创建新的html文件，命名为index.html作为启动文件

运行效果如下

RESTful 接口的 Web服务

首先在java/com.example.demo下创建四个包

分别命名为bean，controller，manager，service。分别代表了实体层，控制层，管理层和服务层

在每个包中创建相应的类，并编写代码

代码：

Count：

package com.example.demo.bean;

public class Count {
    private int count;

    public int getCount() {
        return count;
    }

    public void setCount(int count) {
        this.count = count;
    }
}

ResourceController

import com.example.demo.service.ResourceService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

@RestController
public class ResourceController {

    @Autowired
    ResourceService resourceService;

    @RequestMapping(value = "/me/count", method = RequestMethod.PUT)
    @ResponseBody
    public void initCount(@RequestBody Count count){
        resourceService.initCount(count);
    }

    @RequestMapping(value = "/me/count", method = RequestMethod.POST)
    @ResponseBody
    public void modifyCount(@RequestBody Count count){
        resourceService.addCount(count);
    }

    @RequestMapping(value = "/me/count", method = RequestMethod.GET)
    @ResponseBody
    public  Count getCount()
    {
        return resourceService.getCount();
    }
}

ResourceManager

package com.example.demo.manager;

public class ResourceManager {
    private int count = 0;

    private static ResourceManager instance = new ResourceManager();

    private ResourceManager(){}

    public static ResourceManager getInstance(){
        return instance;
    }

    public synchronized void addCount(int i){
        count = count + i;
    }

    public synchronized  void minusCount(int i){
        count = count -i;
    }

    public int getCount(){
        return count;
    }

    public void initCount(int i){
        count = i;
    }
}

ResourceService

package com.example.demo.service;

import com.example.demo.bean.Count;
import com.example.demo.manager.ResourceManager;
import org.springframework.stereotype.Service;

@Service
public class ResourceService {
    public void addCount(Count count){
        if (count != null){
            ResourceManager.getInstance().addCount(count.getCount());
        }
    }

    public void minusCount(Count count){
        if (count != null) {
            ResourceManager.getInstance().minusCount(count.getCount());
        }
    }

    public Count getCount()
    {
        Count count = new Count();
        count.setCount(ResourceManager.getInstance().getCount());
        return count;
    }

    public void initCount(Count count){
        if (count != null) {
            ResourceManager.getInstance().initCount(count.getCount());
        }
    }
}

在helloworldApplication上右键启动，效果如下