Based on the description of the global structure of this system and combined with the J2EE platform the key techniques are discussed in detail and the establishment of the dangerous chemical sources database is explained.

• 在论述系统的总体结构的基础上，结合J2EE平台，对其中的关键技术进行了详细的论述，并对危险化学源数据库的建立做了一定的论述。