Implementation example of simple data interaction between android app and PHP Web

preface

As the school's science and technology project needs to realize the simple data interaction between Android App end and PHP web end, the current scenario is that the web end uses MySQL database, Apache server and PHP language. The simple understanding of data interaction is that Android can obtain data from the server and submit data at the same time.

Implementation process

Process description

Concrete implementation

Andorid Server

get data

get_ all_ found_ items.PHP

As can be seen from the above PHP code, through require_ The once() function contains dB_ Connect.php file to execute the database configuration file. Define the array $response to receive the data results of the query, assign $response ["success"] by judging different situations, and return to the web page for display

PHP file execution results

JSON

Submit data

create_ found_ items.PHP

Judge whether all get request parameters exist, and take the obtained get request parameters as data insert to MySQL database. Judge the insert execution process, assign $response ["success"] corresponding to the corresponding $response ["message"] and display it on the web page.

results of enforcement

Andorid

get data

Core code querylosts() function

Using the Android network framework okhttp, an open-source project for processing network requests, okhttp is the hottest lightweight framework on the Android side. Request the interface URL address, obtain the JSON data, and use jsonobject to parse the JSON data.

Submit data

Core code addlost() function

Similarly, okhttp and get are used to submit parameters, try catch is used to obtain exceptions, and a certain prompt of submission result is given through the return value.

Code test

Data synchronization

Web side

Andorid end

Data submission

Submit results

epilogue

The above process is basically realized, and the project can basically be handed over. The PHP part of this project is mainly done by yourself, and it is also done while learning. Android is the main responsibility of another student. During this period, I also asked for the help of friends I made during my internship. Thank all those who give and help. I hope it will help you in your study, and I also hope you can support programming tips.