Spring MVC с MySQL и Junit — поиск сотрудников по местоположению
В реальных сценариях организации существуют в разных местах. Сотрудники доступны во многих местах. Иногда они работают в двух разных местах, т. е. в течение нескольких дней они работают в месте 1, а еще несколько дней они работают в месте 2. Давайте смоделируем этот сценарий с помощью запросов MySQL и подготовим приложение Spring MVC, которое взаимодействует с MySQL, и получим необходимые детали. А также давайте посмотрим тестовые примеры JUNIT.
Требуемые запросы MySQL:
DROP DATABASE IF EXISTS test; CREATE DATABASE test; USE test; DROP TABLE test.employeesdetails; CREATE TABLE `employeesdetails` ( `id` int(6) unsigned NOT NULL, `Name` varchar(50) DEFAULT NULL, `AvailableDays` varchar(200) DEFAULT NULL, `location` varchar(50) DEFAULT NULL, `qualification` varchar(20) DEFAULT NULL, `experience` int(11) DEFAULT NULL, `gender` varchar(10) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=latin1; INSERT INTO `test`.`employeesdetails` (`id`,`Name`,`AvailableDays`,`location`,`qualification`, `experience`,`gender`) VALUES (1,"EmployeeA","Monday,Tuesday,Friday","Location1","BE",5,"Female"); INSERT INTO `test`.`employeesdetails` (`id`,`Name`,`AvailableDays`,`location`,`qualification`, `experience`,`gender`) VALUES (2,"EmployeeB","Monday,Wednesday,Friday","Location1","MCA",3,"Female"); INSERT INTO `test`.`employeesdetails` (`id`,`Name`,`AvailableDays`,`location`,`qualification`, `experience`,`gender`) VALUES (3,"EmployeeC", "Wednesday,Thursday","Location2","BE",5,"Female"); INSERT INTO `test`.`employeesdetails` (`id`,`Name`,`AvailableDays`,`location`,`qualification`, `experience`,`gender`) VALUES (4,"EmployeeD","Saturday,Sunday","Location2","MBA",4,"Male"); INSERT INTO `test`.`employeesdetails` (`id`,`Name`,`AvailableDays`,`location`,`qualification`, `experience`,`gender`) VALUES (5,"EmployeeE","Tuesday,Thursday","Location2","MCA",3,"Female"); INSERT INTO `test`.`employeesdetails` (`id`,`Name`,`AvailableDays`,`location`,`qualification`, `experience`,`gender`) VALUES (6,"EmployeeA","Wednesday,Thursday","Location2","BE",5,"Female"); SELECT * FROM test.employeesdetails;
Вывод test.employeedetails:
С этой настройкой давайте запустим проект Spring MVC, который взаимодействует с MySQL, и создадим детали по нашим запросам.
Реализация
Структура проекта:
Это проект, управляемый Maven. Давайте начнем с
пом.xml
XML
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 <modelVersion>4.0.0</modelVersion> <groupId>com.employees</groupId> <artifactId>SpringMVCFindEmployee</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>SpringMVCFindEmployee Maven Webapp</name> <properties> <failOnMissingWebXml>false</failOnMissingWebXml> <spring-version>5.1.0.RELEASE</spring-version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <dependency> <groupId>org.mockito</groupId> <artifactId>mockito-all</artifactId> <version>1.9.5</version> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring-version}</version> </dependency> <dependency> <groupId>org.apache.tomcat</groupId> <artifactId>tomcat-jasper</artifactId> <version>9.0.12</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.11</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring-version}</version> </dependency> </dependencies> <build> <finalName>SpringMVCFindEmployee</finalName> <sourceDirectory>src/main/java</sourceDirectory> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.5.1</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <!-- This should be added to overcome Could not initialize class org.apache.maven.plugin.war.util.WebappStructureSerializer --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <version>3.3.2</version> </plugin> </plugins> </build></project> |
Давайте посмотрим на некоторые важные java-файлы.
Класс бобов
Сотрудник.java
Java
public class Employee { // All instance variables should // match with the columns present // in MySQL test.employeedetails table private int id; private String name; private float salary; private String availableDays; private String location; private String qualification; private int experience; private String gender; public String getLocation() { return location; } public void setLocation(String location) { this.location = location; } public String getQualification() { return qualification; } public void setQualification(String qualification) { this.qualification = qualification; } public int getExperience() { return experience; } public void setExperience(int experience) { this.experience = experience; } public String getGender() { return gender; } public void setGender(String gender) { this.gender = gender; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public float getSalary() { return salary; } public void setSalary(float salary) { this.salary = salary; } public String getAvailableDays() { return availableDays; } public void setAvailableDays(String availableDays) { this.availableDays = availableDays; }} |
СотрудникКонтроллер.java
Java
import com.employees.beans.Employee;import com.employees.dao.EmployeeDao;import java.sql.SQLException;import java.util.StringTokenizer;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.ModelAttribute;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.SessionAttributes;import org.springframework.web.servlet.ModelAndView;@Controller@SessionAttributes("employee")public class EmployeeController { @Autowired EmployeeDao dao; @Autowired public EmployeeController(EmployeeDao dao) { this.dao = dao; } @ModelAttribute("employee") public Employee getEmployee() { return new Employee(); } // for searchform @RequestMapping("/employeesearchform") public String searchform(Model m) { m.addAttribute("command", new Employee()); return "employeesearchform"; } // It provides search of employees in model object @RequestMapping(value = "/searchEmployee", method = RequestMethod.POST) public ModelAndView searchEmployee(@ModelAttribute("employee") Employee employee) { ModelAndView mav = null; Employee employee1; try { employee1 = dao.getEmployeesByNameAndLocation( employee.getName(), employee.getLocation()); mav = new ModelAndView("welcome"); if (null != employee1) { System.out.println( employee1.getId() + "..." + employee1.getName() + ".." + employee1.getAvailableDays() + "..chosen location.." + employee.getLocation()); StringTokenizer st = new StringTokenizer( employee1.getAvailableDays(), ","); boolean isAvailable = false; while (st.hasMoreTokens()) { // System.out.println(st.nextToken()); // if // (st.nextToken().equalsIgnoreCase(employee.getAvailableDays())) // { isAvailable = true; break; //} } mav.addObject("firstname", employee1.getName()); if (isAvailable) { mav.addObject("availability", "Available on"); } else { mav.addObject("availability", "Not Available on"); } mav.addObject("day", employee1.getAvailableDays());РЕКОМЕНДУЕМЫЕ СТАТЬИ |