1. Time-sharing graph to achieve stocks in Java (net worth of funds) has basically completed the project manager to give me a task. I spent a week to study JFreechart, and spend a weekly interface to write data interaction interface. I feel that JFreechart is really wrong, the generated picture quality is good. It also supports pictures, columnar, and so on in various styles, and there is a certain application in practice. Analyze the data situation, compare intuitive display support JSP and servlet, you can apply directly in the web,!
2. The Fund Direct Sell & Trading System is well known that data in the fund system are sensitive information. Recommend personal privacy. Even money deals! Safety and stability are self-evident, data transmission and verification is the cruity of the entire system, and it is also the process of processing data in the system of the system of the fund system. The process of processing data is: System definition packet Format, including various inspection data and actual data (in fact, there are many information involved, including various business actions, behaviors definition, and UnionPay system interaction protocol) Data transmission process: Step 1: Client The user issued a request, requested data for packaging encryption, step 2: The packet must pass the verification and processing of the UnionPay system, mainly to verify account information, and the provision of funds: decrypt the packet, solve the data Package verification, third step: verify correct, the Fund server accepts data processing Step 4: Return the result to the client (including error information or success information) 3. Fund online system technology
3.1 Fund System Divided into: C / S and B / S CAUSE Delphi Tuxedo Middleware Here is B / S, using J2EE Tuxedo middleware mainly involved J2EE platform JSP, servlet, sessionbean Technical sessionBean assumes some data encryption, verification business logic features, current data encryption mainly uses C or Java! The advantages and disadvantages of using 2 are not discussed, and I have not tested the specific performance! Verification of customer account information is a category of UnionPay system! The Tuxedo middleware exists as a backend service, mainly assumes the business logic (transaction) of data processing, this technology is currently widely used in major telecommunications, finance, banks (current online has proposed whether to use J2EE technology to replace Tuxedo discussion)
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