How to develop a simple online recruitment system using MySQL and Python

How to use MySQL and Python to develop a simple online recruitment system

1. Introduction

With the popularity of the Internet and the development of informatization, Online recruitment systems have gradually become the preferred way for companies to recruit talents. This article will introduce how to use MySQL and Python to develop a simple online recruitment system. Through this system, companies can publish recruitment information, and job seekers can browse positions and submit resumes. At the same time, the system can automatically match positions and job seekers, simplifying the recruitment process and improving efficiency.

2. System Requirements

In order to develop a complete online recruitment system, we need to consider the following functions:

1. Enterprise module: Enterprises can register Account, log in to the system, and publish recruitment information.
2. Position module: Enterprises can publish new positions, modify and delete published positions.
3. Job seeker module: Job seekers can register an account, log in to the system, browse posted positions, and submit their resume.
4. Matching module: The system can automatically match positions and job seekers and provide recommended positions or candidate lists.

3. Database design

The online recruitment system needs to use a database to store information such as companies, job seekers, and positions. We can use the MySQL database to create the following tables:

1. Company table (company): fields include company ID, company name, company email, etc.
2. Applicant table (applicant): fields include applicant ID, applicant name, applicant email, etc.
3. Position table (position): fields include position ID, position name, position description, etc.
4. Resume table (resume): fields include resume ID, applicant ID, position ID, etc.
5. Recommendation table (recommend): fields include recommendation ID, job seeker ID, position ID, etc.

4. Back-end development

1. Database connection

Use the MySQL connection library in Python to connect to the MySQL database and create the corresponding cursor object.

import pymysql

# 连接数据库
conn = pymysql.connect(host='localhost', user='root', password='password', database='recruitment_system')
cursor = conn.cursor()

2. Enterprise module development

• Register enterprise account

def register_company(company_name, email, password):
    sql = "INSERT INTO company (company_name, email, password) VALUES (%s, %s, %s)"
    cursor.execute(sql, (company_name, email, password))
    conn.commit()

• Log in enterprise account

def login_company(email, password):
    sql = "SELECT company_name FROM company WHERE email=%s AND password=%s"
    cursor.execute(sql, (email, password))
    result = cursor.fetchone()
    if result:
        return result[0]
    else:
        return None

• Post a job

def publish_position(company_name, position_name, description):
    sql = "INSERT INTO position (company_name, position_name, description) VALUES (%s, %s, %s)"
    cursor.execute(sql, (company_name, position_name, description))
    conn.commit()

3. Job seeker module development

• Register a job seeker account

def register_applicant(name, email, password):
    sql = "INSERT INTO applicant (name, email, password) VALUES (%s, %s, %s)"
    cursor.execute(sql, (name, email, password))
    conn.commit()

• Log in to job seeker account

def login_applicant(email, password):
    sql = "SELECT name FROM applicant WHERE email=%s AND password=%s"
    cursor.execute(sql, (email, password))
    result = cursor.fetchone()
    if result:
        return result[0]
    else:
        return None

• Browse jobs

def browse_positions():
    sql = "SELECT position_id, position_name, description FROM position"
    cursor.execute(sql)
    positions = cursor.fetchall()
    return positions

• Submit resume

def submit_resume(applicant_name, position_id):
    sql = "INSERT INTO resume (applicant_name, position_id) VALUES (%s, %s)"
    cursor.execute(sql, (applicant_name, position_id))
    conn.commit()

4. Matching module development

• Automatically match positions and job applicants

def match_positions_and_applicants():
    sql = "SELECT applicant_name, position_id FROM resume"
    cursor.execute(sql)
    resumes = cursor.fetchall()
    for resume in resumes:
        applicant_name = resume[0]
        position_id = resume[1]
        # 根据不同的匹配算法进行匹配，并将结果插入到推荐表（recommend）中

5. Front-end development

You can use Web frameworks (such as Flask or Django) to implement front-end pages and user interaction. Through the front-end page, companies can register, log in, and publish, modify, and delete positions; job seekers can register, log in, browse positions, and submit resumes. At the same time, the system can display matching results and recommend positions or candidates.

6. Summary

Through the introduction of this article, we have learned how to use MySQL and Python to develop a simple online recruitment system. The system has functions such as company registration, login, and job posting, job seeker registration, login, job browsing, resume submission, etc., as well as the function of the system automatically matching jobs and job seekers. This simple online recruitment system can serve as the basis for further development and improvement to achieve more functions and added value.

It should be noted that this article is only an example, and it may need to be appropriately adjusted and improved according to specific needs during the actual development process.

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