我正在使用Spring MVC 4.1.5及其REST支持尝试使用谷歌协议缓冲区消息格式的Web服务.我看过很多帖子都提到了JSON格式的这个问题,但没有一个用google协议缓冲区格式.另外我没有看到Spring框架文档有一个用于protobufs的MediaType(下面有更多内容)我的代码发布在github上
这是我的控制器代码(使用或不使用produce ="application-xprotobuf"没有区别 - 相同406不可接受的错误)
@RestController
@RequestMapping("/ws")
@EnableWebMvc
public class CustomerRestController {
@Autowired
private CustomerRepository customerRepository;
//@RequestMapping(value="/customers/{id}", method = RequestMethod.GET, produces="application/x-protobuf")
@RequestMapping(value="/customers/{id}", method = RequestMethod.GET)
public CustomerProtos.Customer customer(@PathVariable Integer id) {
return this.customerRepository.findById(id);
}
@Bean
ProtobufHttpMessageConverter protobufHttpMessageConverter() {
return new ProtobufHttpMessageConverter();
}
private CustomerProtos.Customer customer(int id, String f, String l, Collection emails) {
String emailAddressString = "defaultEmail@address.com";
for (String email : emails) {
emailAddressString = email;
break;
}
EmailAddress emailAddress = CustomerProtos.Customer.EmailAddress.newBuilder()
.setType(CustomerProtos.Customer.EmailType.PROFESSIONAL).setEmail(emailAddressString).build();
return CustomerProtos.Customer.newBuilder().setFirstName(f).setLastName(l).setId(id).addEmail(emailAddress)
// .addAllEmail(emailAddresses)
.build();
}
@Bean
CustomerRepository customerRepository() {
return new CustomerRepositoryImpl();
}
}
这是我的web.xml
demo index.html index.htm index.jsp default.html default.htm default.jsp rest org.springframework.web.servlet.DispatcherServlet 1 rest /* contextConfigLocation /WEB-INF/rest-servlet.xml org.springframework.web.context.ContextLoaderListener
这是我的pom.xml,请注意我在这里添加了谷歌protobuf库,他们最终在部署的.war文件的WEB-INF/lib文件夹中.
4.0.0 org.test demo 0.0.1-SNAPSHOT war org.springframework.boot spring-boot-starter-parent 1.3.0.RELEASE UTF-8 demo.DemoApplication 1.8 2.5.3 org.springframework spring-webmvc 4.2.0.RELEASE org.springframework spring-tx 4.2.0.RELEASE com.fasterxml.jackson.core jackson-databind javax.servlet javax.servlet-api com.google.protobuf protobuf-java 2.5.0 com.googlecode.protobuf-java-format protobuf-java-format 1.2 org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-legacy 1.0.0.RELEASE org.springframework.boot spring-boot-maven-plugin
这是我的测试客户端
package demo;
import java.util.Arrays;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.IntegrationTest;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.ResponseEntity;
import org.springframework.http.converter.protobuf.ProtobufHttpMessageConverter;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.web.client.RestTemplate;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration
public class DemoApplicationTests {
@Configuration
public static class RestClientConfiguration {
@Bean
RestTemplate restTemplate(ProtobufHttpMessageConverter hmc) {
return new RestTemplate(Arrays.asList(hmc));
}
@Bean
ProtobufHttpMessageConverter protobufHttpMessageConverter() {
return new ProtobufHttpMessageConverter();
}
}
@Autowired
private RestTemplate restTemplate;
@Test
public void contextLoaded() {
ResponseEntity customer = restTemplate.getForEntity(
"http://localhost:7001/demo-0.0.1-SNAPSHOT/ws/customers/2", CustomerProtos.Customer.class);
System.out.println("customer retrieved: " + customer.toString());
}
}
当我使用mvn测试从命令行运行客户端时,我收到以下错误
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.697 sec <<< FAILURE! - in demo.DemoApplicationTests
contextLoaded(demo.DemoApplicationTests) Time elapsed: 0.037 sec <<< ERROR!
org.springframework.web.client.HttpClientErrorException: 406 Not Acceptable
at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:91)
at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:641)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:597)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:557)
at org.springframework.web.client.RestTemplate.getForEntity(RestTemplate.java:289)
at demo.DemoApplicationTests.contextLoaded(DemoApplicationTests.java:42)
我看到人们建议使用contentNegotiationManager
在我的rest-servlet.xml中,我有mvc:annotation-driven标签
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