In e - business , security electronic payment always plays an important role in the electronic transaction . at the end , we analyze the related online payment technology , implement an online payment prototype component system based on the java cryptography architecture and discuss the online payment component technology briefly 論文的最后還分析了網上支付系統的相關技術,并對現有的網上支付系統的安全性進行折衷,基于jdk的加密體系實現了一個網上支付原型組件系統,對網上支付組件技術做了初步探討。