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‎README.md‎

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# grants

‎pom.xml‎

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.uts.grants</groupId>
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<artifactId>grants</artifactId>
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<packaging>war</packaging>
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<version>1.0.0</version>
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<name>gratsweb Maven Webapp</name>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<springframework.version>4.3.1.RELEASE</springframework.version>
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<jackson.version>2.7.5</jackson.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-webmvc</artifactId>
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<version>${springframework.version}</version>
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</dependency>
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-databind</artifactId>
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<version>${jackson.version}</version>
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</dependency>
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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<version>3.1.0</version>
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</dependency>
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>jstl</artifactId>
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<version>1.2</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.2</version>
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<configuration>
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<source>1.7</source>
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<target>1.7</target>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-war-plugin</artifactId>
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<version>2.4</version>
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<configuration>
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<warSourceDirectory>src/main/webapp</warSourceDirectory>
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<warName>grants</warName>
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<failOnMissingWebXml>false</failOnMissingWebXml>
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</configuration>
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</plugin>
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</plugins>
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<finalName>grants</finalName>
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</build>
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</project>

‎src/main/java/com/websystique/springmvc/configuration/CORSFilter.java‎

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package com.websystique.springmvc.configuration;
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import java.io.IOException;
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import javax.servlet.Filter;
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import javax.servlet.FilterChain;
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import javax.servlet.FilterConfig;
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import javax.servlet.ServletException;
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import javax.servlet.ServletRequest;
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import javax.servlet.ServletResponse;
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import javax.servlet.http.HttpServletResponse;
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public class CORSFilter implements Filter {
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public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
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HttpServletResponse response = (HttpServletResponse) res;
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response.setHeader("Access-Control-Allow-Origin", "*");
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response.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, OPTIONS, DELETE");
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response.setHeader("Access-Control-Max-Age", "3600");
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response.setHeader("Access-Control-Allow-Headers", "X-requested-with, Content-Type");
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chain.doFilter(req, res);
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}
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public void init(FilterConfig filterConfig) {}
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public void destroy() {}
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}

‎src/main/java/com/websystique/springmvc/configuration/HelloWorldConfiguration.java‎

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package com.websystique.springmvc.configuration;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.web.servlet.config.annotation.EnableWebMvc;
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import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
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import org.springframework.web.servlet.config.annotation.ViewResolverRegistry;
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import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
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import org.springframework.web.servlet.view.InternalResourceViewResolver;
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import org.springframework.web.servlet.view.JstlView;
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@Configuration
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@EnableWebMvc
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@ComponentScan(basePackages = "com.websystique.springmvc")
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public class HelloWorldConfiguration extends WebMvcConfigurerAdapter{
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@Override
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public void configureViewResolvers(ViewResolverRegistry registry) {
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InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
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viewResolver.setViewClass(JstlView.class);
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viewResolver.setPrefix("/WEB-INF/views/");
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viewResolver.setSuffix(".jsp");
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registry.viewResolver(viewResolver);
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}
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@Override
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public void addResourceHandlers(ResourceHandlerRegistry registry) {
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registry.addResourceHandler("/static/**").addResourceLocations("/static/");
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}
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}

‎src/main/java/com/websystique/springmvc/configuration/HelloWorldInitializer.java‎

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package com.websystique.springmvc.configuration;
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// class file
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import javax.servlet.Filter;
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import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
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public class HelloWorldInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
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@Override
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protected Class<?>[] getRootConfigClasses() {
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return new Class[] { HelloWorldConfiguration.class };
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}
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@Override
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protected Class<?>[] getServletConfigClasses() {
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return null;
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}
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@Override
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protected String[] getServletMappings() {
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return new String[] { "/" };
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}
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@Override
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protected Filter[] getServletFilters() {
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Filter [] singleton = { new CORSFilter() };
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return singleton;
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}
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}

‎src/main/java/com/websystique/springmvc/controller/HelloWorldRestController.java‎

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package com.websystique.springmvc.controller;
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import java.util.List;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.http.HttpHeaders;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.MediaType;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.RequestBody;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import org.springframework.web.bind.annotation.RestController;
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import org.springframework.web.util.UriComponentsBuilder;
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import com.websystique.springmvc.model.User;
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import com.websystique.springmvc.service.UserService;
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@RestController
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public class HelloWorldRestController {
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@Autowired
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UserService userService; //Service which will do all data retrieval/manipulation work
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//-------------------Retrieve All Users--------------------------------------------------------
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@RequestMapping(value = "/user/", method = RequestMethod.GET)
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public ResponseEntity<List<User>> listAllUsers() {
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List<User> users = userService.findAllUsers();
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if(users.isEmpty()){
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return new ResponseEntity<List<User>>(HttpStatus.NO_CONTENT);//You many decide to return HttpStatus.NOT_FOUND
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}
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return new ResponseEntity<List<User>>(users, HttpStatus.OK);
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}
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//-------------------Retrieve Single User--------------------------------------------------------
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@RequestMapping(value = "/user/{id}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
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public ResponseEntity<User> getUser(@PathVariable("id") long id) {
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System.out.println("Fetching User with id " + id);
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User user = userService.findById(id);
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if (user == null) {
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System.out.println("User with id " + id + " not found");
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return new ResponseEntity<User>(HttpStatus.NOT_FOUND);
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}
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return new ResponseEntity<User>(user, HttpStatus.OK);
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}
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//-------------------Create a User--------------------------------------------------------
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@RequestMapping(value = "/user/", method = RequestMethod.POST)
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public ResponseEntity<Void> createUser(@RequestBody User user, UriComponentsBuilder ucBuilder) {
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System.out.println("Creating User " + user.getUsername());
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if (userService.isUserExist(user)) {
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System.out.println("A User with name " + user.getUsername() + " already exist");
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return new ResponseEntity<Void>(HttpStatus.CONFLICT);
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}
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userService.saveUser(user);
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HttpHeaders headers = new HttpHeaders();
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headers.setLocation(ucBuilder.path("/user/{id}").buildAndExpand(user.getId()).toUri());
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return new ResponseEntity<Void>(headers, HttpStatus.CREATED);
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}
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//------------------- Update a User --------------------------------------------------------
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@RequestMapping(value = "/user/{id}", method = RequestMethod.PUT)
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public ResponseEntity<User> updateUser(@PathVariable("id") long id, @RequestBody User user) {
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System.out.println("Updating User " + id);
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User currentUser = userService.findById(id);
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if (currentUser==null) {
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System.out.println("User with id " + id + " not found");
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return new ResponseEntity<User>(HttpStatus.NOT_FOUND);
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}
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currentUser.setUsername(user.getUsername());
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currentUser.setAddress(user.getAddress());
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currentUser.setEmail(user.getEmail());
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userService.updateUser(currentUser);
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return new ResponseEntity<User>(currentUser, HttpStatus.OK);
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}
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//------------------- Delete a User --------------------------------------------------------
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@RequestMapping(value = "/user/{id}", method = RequestMethod.DELETE)
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public ResponseEntity<User> deleteUser(@PathVariable("id") long id) {
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System.out.println("Fetching & Deleting User with id " + id);
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User user = userService.findById(id);
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if (user == null) {
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System.out.println("Unable to delete. User with id " + id + " not found");
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return new ResponseEntity<User>(HttpStatus.NOT_FOUND);
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}
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userService.deleteUserById(id);
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return new ResponseEntity<User>(HttpStatus.NO_CONTENT);
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}
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//------------------- Delete All Users --------------------------------------------------------
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@RequestMapping(value = "/user/", method = RequestMethod.DELETE)
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public ResponseEntity<User> deleteAllUsers() {
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System.out.println("Deleting All Users");
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userService.deleteAllUsers();
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return new ResponseEntity<User>(HttpStatus.NO_CONTENT);
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}
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}

‎src/main/java/com/websystique/springmvc/controller/IndexController.java‎

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package com.websystique.springmvc.controller;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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@Controller
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@RequestMapping("/")
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public class IndexController {
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@RequestMapping(method = RequestMethod.GET)
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public String getIndexPage() {
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return "UserManagement";
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}
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}

‎src/main/java/com/websystique/springmvc/model/User.java‎

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package com.websystique.springmvc.model;
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public class User {
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private long id;
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private String username;
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private String address;
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private String email;
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public User(){
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id=0;
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}
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public User(long id, String username, String address, String email){
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this.id = id;
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this.username = username;
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this.address = address;
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this.email = email;
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}
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public long getId() {
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return id;
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}
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public void setId(long id) {
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this.id = id;
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}
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public String getUsername() {
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return username;
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}
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public void setUsername(String username) {
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this.username = username;
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}
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public String getAddress() {
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return address;
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}
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public void setAddress(String address) {
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this.address = address;
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}
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public String getEmail() {
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return email;
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}
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public void setEmail(String email) {
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this.email = email;
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}
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@Override
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public int hashCode() {
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final int prime = 31;
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int result = 1;
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result = prime * result + (int) (id ^ (id >>> 32));
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return result;
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj)
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return true;
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if (obj == null)
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return false;
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if (!(obj instanceof User))
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return false;
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User other = (User) obj;
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if (id != other.id)
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return false;
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return true;
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}
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@Override
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public String toString() {
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return "User [id=" + id + ", username=" + username + ", address=" + address
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+ ", email=" + email + "]";
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}
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}

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