Lecture13

Server-side Web Programming Lecture 13: JDBC Database Programming

JDBC Definition ,[object Object],[object Object],[object Object],[object Object],web container control servlet JSP database database driver JDBC DBMS database server JDBC

JDBC Components ,[object Object],[object Object],[object Object],[object Object],Database server database Statement object select * from books ResultSet object productCode title price productCode title price productCode title price

Connecting to the Database Server ,[object Object],[object Object],[object Object],[object Object],[object Object]

Connecting to the Database Server ,[object Object],[object Object],[object Object],[object Object]

Exception Handling in JDBC ,[object Object],[object Object],[object Object],[object Object],Diagnostic message displayed Better idea: Redirect to an error page

Executing Queries ,[object Object],[object Object],[object Object],[object Object]

Reading ResultSets ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Reading ResultSets ,[object Object],Specify field name used in database Specify type data is to be read in as varChar  getString int  getInt double  getDouble

Reading ResultSets ,[object Object],[object Object],[object Object]

Reading ResultSets Display title and price in next table row Create form that passes productCode of selected book to servlet if button on this row is pressed

Executing Update Statements ,[object Object],[object Object],[object Object],[object Object]

Inserting Parameter Values ,[object Object],[object Object],[object Object]

Inserting Parameter Values ,[object Object],[object Object]

Inserting Parameter Values ,[object Object],[object Object],[object Object],0004 Green Eggs and Ham 9.95 Creates string of form: INSERT INTO books (productCode, title, price) VALUES (‘0004’, ‘Green Eggs and Ham’, 9.95)

Validation and Updates ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Validation and Updates ,[object Object],[object Object],[object Object]

Lecture13

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Lecture13