BS1045-基于Android的校园交流信息通讯管理系统

基于Android的校园交流信息通讯管理系统，系统采用多层MVC软件架构，采用Java websocket 通信开发技术实现针对校园内部学生之间的学习资源分享，及时通讯，教学课程小组的建立及管理，实现校园内部快速线上教学，校园交友等功能。

原文地址

一、程序设计

本次基于Android的校园交流信息通讯管理系统，主要内容涉及：

主要功能模块：消息推送管理，好友列表管理，个人中心管理，线上聊天，信息查看，个人小组管理，好友添加，用户留言，阅读管理等等
主要包含技术：Android编程语言，mysql，html，javascript，echarts，vue.js
主要包含算法：数据分析计算等

二、效果实现

即时通讯

个人中心

其他效果省略

三、核心代码

1.用户登录
本系统用户登录模块，主要APP端对用户登录的用户名及账号密码进行加密操作，发送至系统服务器后台接口，后端接口对用户账号信息进行校验，校验通过后写入mysql数据库中，并标记当前用户的登录状态。

public R login(String username, String password, String captcha) {
		String kaptcha = ShiroUtils.getKaptcha(Constants.KAPTCHA_SESSION_KEY);
		if(!captcha.equalsIgnoreCase(kaptcha)){
			return R.error("验证码不正确");
		}
	<span class="token keyword">try</span><span class="token punctuation">{<!-- --></span>
		<span class="token class-name">Subject</span> subject <span class="token operator">=</span> <span class="token class-name">ShiroUtils</span><span class="token punctuation">.</span><span class="token function">getSubject</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
		<span class="token class-name">UsernamePasswordToken</span> token <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">UsernamePasswordToken</span><span class="token punctuation">(</span>username<span class="token punctuation">,</span> password<span class="token punctuation">)</span><span class="token punctuation">;</span>
		subject<span class="token punctuation">.</span><span class="token function">login</span><span class="token punctuation">(</span>token<span class="token punctuation">)</span><span class="token punctuation">;</span>
	<span class="token punctuation">}</span><span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">UnknownAccountException</span> e<span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>
		<span class="token keyword">return</span> <span class="token class-name">R</span><span class="token punctuation">.</span><span class="token function">error</span><span class="token punctuation">(</span>e<span class="token punctuation">.</span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
	<span class="token punctuation">}</span><span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">IncorrectCredentialsException</span> e<span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>
		<span class="token keyword">return</span> <span class="token class-name">R</span><span class="token punctuation">.</span><span class="token function">error</span><span class="token punctuation">(</span><span class="token string">"账号或密码不正确"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
	<span class="token punctuation">}</span><span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">LockedAccountException</span> e<span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>
		<span class="token keyword">return</span> <span class="token class-name">R</span><span class="token punctuation">.</span><span class="token function">error</span><span class="token punctuation">(</span><span class="token string">"账号已被锁定,请联系管理员"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
	<span class="token punctuation">}</span><span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">AuthenticationException</span> e<span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>
		<span class="token keyword">return</span> <span class="token class-name">R</span><span class="token punctuation">.</span><span class="token function">error</span><span class="token punctuation">(</span><span class="token string">"账户验证失败"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
	<span class="token punctuation">}</span>
    
	<span class="token keyword">return</span> <span class="token class-name">R</span><span class="token punctuation">.</span><span class="token function">ok</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>