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Spring MVC REST Service Sample
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<context:component-scan base-package="com.brunocesar" />
<mvc:annotation-driven content-negotiation-manager="contentNegotiationManager" />
<bean id="contentNegotiationManager" class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
<property name="defaultContentType" value="application/json" />
<property name="mediaTypes">
<value>
json=application/json
xml=application/xml
</value>
</property>
</bean>
</beans>
package com.brunocesar.bean;
public class Candidato {
public Candidato() {}
public Candidato(final long id, final String nome) {
this.id = id;
this.nome = nome;
}
private long id;
private String nome;
public long getId() {
return id;
}
public void setId(final long id) {
this.id = id;
}
public String getNome() {
return nome;
}
public void setNome(final String nome) {
this.nome = nome;
}
}
package com.brunocesar.service;
import java.util.List;
import com.brunocesar.bean.Candidato;
public interface CandidatoService {
List<Candidato> listarCandidatos();
}
package com.brunocesar.service.impl;
import java.util.ArrayList;
import java.util.List;
import org.springframework.stereotype.Service;
import com.brunocesar.bean.Candidato;
import com.brunocesar.service.CandidatoService;
@Service
public class CandidatoServiceImpl implements CandidatoService {
@Override
public List<Candidato> listarCandidatos() {
final List<Candidato> result = new ArrayList<>();
result.add(new Candidato(1, "Pedro da Silva"));
result.add(new Candidato(2, "Paula Pereira"));
result.add(new Candidato(3, "<anonimo>"));
return result;
}
}
package com.brunocesar.ws;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.brunocesar.bean.Candidato;
import com.brunocesar.service.CandidatoService;
@RestController
@RequestMapping(value = "/test")
public class CandidatosWS {
@Autowired
private CandidatoService candidatoService;
@RequestMapping(value = "/candidatos", method = RequestMethod.GET)
public List<Candidato> allCandidatos() {
return candidatoService.listarCandidatos();
}
}
package com.brunocesar.config;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
public class SpringMvcWebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class<?>[] getRootConfigClasses() {
return new Class[] {WebApplicationConfig.class};
}
@Override
protected Class<?>[] getServletConfigClasses() {
return null;
}
@Override
protected String[] getServletMappings() {
return new String[] {"/"};
}
}
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
metadata-complete="true">
<display-name>Test Application</display-name>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<!-- spring servlet -->
<servlet>
<servlet-name>springDispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>WEB-INF/applicationContext-mvc.xml</param-value>
</init-param>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springDispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
package com.brunocesar.config;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.web.servlet.config.annotation.ContentNegotiationConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
@EnableWebMvc
@Configuration
@ComponentScan(basePackages = "com.brunocesar")
public class WebApplicationConfig extends WebMvcConfigurerAdapter {
@Override
public void configureContentNegotiation(final ContentNegotiationConfigurer configurer) {
configurer.parameterName("mediaType")
.defaultContentType(MediaType.APPLICATION_JSON)
.mediaType("xml", MediaType.APPLICATION_XML)
.mediaType("json", MediaType.APPLICATION_JSON);
}
}
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