随着信息时代的发展以及互联网计算机技术的普及,网络安全逐渐成为了社会关注的重点。现阶段,各行各业的信息化建设使得网络系统管理的地位日益提升,与企业相关的各种数据信息也被储存于强大的网络数据库中。然而这些数据库往往是网络黑客的入侵目标,由此可见信息安全受到了较大的威胁。鉴于此,本文主要分析常见的网络攻击形式,即向SQL数据库中注入攻击,探讨Java Web应用过程中防御措施。 With the development of the information age and the popularization of Internet computer technology, network security has gradually become the focus of society. At this stage, the information construction of all walks of life makes the status of network system management increasing day by day, and various enterprise-related data and information are also stored in a powerful network database. However, these databases are often the targets of network hacking. This shows that information security has been greatly threatened. In view of this, this article analyzes the common forms of network attacks, that is, injecting attacks into the SQL database to explore the defensive measures in the Java Web application process.