其中SQL脚本展示了关系型数据库的表结构和基础数据，源码便于分析前后端交互，文档资料详细阐述需求分析、架构设计和实现细节，视频则演示数据库导入、Tomcat部署及前台后台操作流程。 目前已有290人学习，适合作为毕业设计参考或Web开发课程综合实训素材。

这段代码是项目里最基础也是复用率最高的部分。 postJson 接收完整接口地址和JSON字符串，设置连接与读取超时均为10秒，避免弱网环境下请求长时间挂起。使用 HttpURLConnection 而不是第三方库，是为了减少依赖、方便直接跑通流程。返回体统一用 String 接住，由业务层再做 JSONObject 或 JSONArray 解析。

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Which array to use as the data source for the list How to convert any given item in the array into a corresponding View object When using an adapter and a ListView, we need to make sure to understand ...

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