IDEA和 tomcat 整合以及快速入门Servlet

今天药忘吃喽~ 2023-02-27 10:33 32阅读 0赞

# 一.IDEA和tomcat整合 #

## 1.**创建WEB项目** ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNzA1MTMx_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNzA1MTMx_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNzA1MTMx_size_16_color_FFFFFF_t_70 2][]

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## 2. **设置当前项目的tomcat环境** ##

配置tomcat

1. 点击Run -->Edit Configurations...

![up-1ac9c7bb82e3be9879d1e0116596249707b.png][]

或者:

![20200716223336585.png][]

2. 点左上 + 选择Tomcat Server

![up-0fe30f4afe19041fe66362d6e10ece64a32.png][]

3. 修改命名

![up-a1013485231f5f3b5047752e0349e71c9d3.png][]

4. 选择Deployment -->  点击"+"   --> 选择  Artifacts

![up-f0c97f2edcf377ec4ddc709b123ef5a2748.png][]

5. 选择第二个

![up-06c56b05f4bde71dd34ce4f9823fc960339.png][]

6. 路径命名最好与项目名一致

![up-c0cc9f01fd226f560283f585d17289c35dd.png][]

7. 选择Server , 修改浏览器,

并且改选为Update clasess and resources(如果默认Do nothing 项目的JSP,你每次需要重启)

![up-c36969013e1060606939413553ab046c5d6.png][]

最终点击确认即可

## 3.**IDEA启动tomcat** ##

![2020071622533239.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNzA1MTMx_size_16_color_FFFFFF_t_70 4][]

## 4.**IDEA启动tomcat-常见问题** ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNzA1MTMx_size_16_color_FFFFFF_t_70 5][]

# 二.**Servlet快速入门** #

Servlet是服务器的**Java程序**，相当于大脑中负责控制身体的部分。

作用：

> 1.  接收浏览器发来的数据（请求）
> 2.  处理数据
> 3.  向浏览器发送数据（响应）

*  导入jar包：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNzA1MTMx_size_16_color_FFFFFF_t_70 6][]

*  尝试创建自己第一个servlet

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNzA1MTMx_size_16_color_FFFFFF_t_70 7][]

## 小结: ##

> 1、导入jar包
> 
> 2、src创建servlet
> 
> 3、web.xml中加入<serlvet-mapping>
> 
>  
> 
> <servlet-name>Demo1Servlet</servlet-name>必须和<servlet>中的<servlet-name>保持一致
> 
> <url-pattern>/dx</url-pattern> 设置这个servlet的浏览器访问路径
> 
> 以/开头
> 
> 4、继承 BaseServlet
> 
> 书写方法
> 
> public String 方法名()\{
> 
> return null;
> 
> \}
> 
>  
> 
> 5、地址栏访问：
> 
> [http://localhost:8080/项目名/dx][http_localhost_8080_dx]

看完恭喜你,又知道了一点点!!!

**你知道的越多,不知道的越多! **

**~感谢志同道合的你阅读,  你的支持是我学习的最大动力 ! ****加油 ,陌生人一起努力,共勉!!**

> **注: 如果本篇有需要改进的地方或错误,欢迎大神们指定一二~~**

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[http_localhost_8080_dx]: http://localhost:8080/%E9%A1%B9%E7%9B%AE%E5%90%8D/dx