springboot学习笔记（一）

本期内容：

1.springboot安装

2.springboot Hello world

1.springboot安装：

参考：

springboot安装

Spring boot简介及安装

a. eclipse中打开help-->Eclipse Marketplace

b. 在search栏目下，输入：spring-tool-suite 或者 springboot

c. 找到Spring tool suite(STS) for Eclipse，点击installed安装即可安装好springboot插件。

这种方法可能会比较慢，可以通过下面的方法安装

 2.springboot Hello world

a.new Project 选择Spring Starter Project

b.填写对应项目信息

c.选择对应springboot版本和SpringWeb项目，点击完成

d.编写BasicController.java

 * Copyright 2013-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.demo.demos.web;

import org.springframework.stereotype.Controller;
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;

@Controller
public class BasicController {

    // http://127.0.0.1:8080/hello?name=lisi
    @RequestMapping("/hello")
    @ResponseBody
    public String hello(@RequestParam(name = "name", defaultValue = "unknown user") String name) {
        return "Hello " + name;
    }


}

e.运行Springboot项目

f. hello world

访问  localhost:8080/hello

访问 localhost:8080/hello?name=123