我正在开发一个 REST Web 服务,它应该能够根据 URL 参数使用 XML 进行响应。我有这个应用程序的第一个版本作为本地版本,因此我有一个 POJO 主类来初始化 XML 处理。问题是无法定位资源,也许我犯了一个错误,将 POJO main 方法放在 Application 类中。此 URI 可以正常工作 localhost:8090/org.CTAG.DATEX2REST,但如果您添加位置 URL 路径,它就不起作用。
PD:我正在使用 jersey 框架、maven、JAXB 和 Tomcat8
编辑:我已经删除了应用程序类,POJO main 现在是一个 ServletContextListener
休息课:
package com.CTAG.rest;
import java.util.LinkedList;
import java.util.List;
import java.util.Objects;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import com.CTAG.core.Traslator;
import eu.datex2.schema._2_0._2_3.D2LogicalModel;
import eu.datex2.schema._2_0._2_3.Situation;
import eu.datex2.schema._2_0._2_3.SituationPublication;
import com.CTAG.filters.FilterByRoad;
@Path("/datex")
@Produces(MediaType.APPLICATION_XML)
public class DataExchange {
private D2LogicalModel datex2 = Traslator.d2;
@GET
@Produces(MediaType.APPLICATION_XML)
public Response getDatex() {
return Response.ok(this.datex2).build();
}
@GET
@Path("/{road}")
public Response getDatexByRoad(@PathParam("road") String roadName){
SituationPublication payLoad = (SituationPublication)this.datex2.getPayloadPublication();
FilterByRoad filter = new FilterByRoad(payLoad.getSituation());
List<Situation> filteredList = new LinkedList<>();
filteredList.addAll(filter.filterByRoad(roadName));
payLoad.setSituation(filteredList);
this.datex2.setPayloadPublication(payLoad);
return Response.ok(this.datex2).build();
}
}
应用程序类:
package com.CTAG.application;
import eu.datex2.schema._2_0._2_3.D2LogicalModel;
import eu.datex2.schema._2_0._2_3.SituationRecord;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
import javax.xml.bind.JAXBException;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerConfigurationException;
import com.CTAG.core.Traslator;
import static java.lang.Thread.sleep;
import java.io.IOException;
import java.net.URL;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
* Configuration of the REST application. This class includes the resources and
* configuration parameter used in the REST API of the application.
*
* @author Andoni Da Silva
*
*/
@ApplicationPath("/rest")
public class ExchangeApplication extends Application{
@Override
public Set<Class<?>> getClasses() {
return Stream.of(D2LogicalModel.class)
.collect(Collectors.toSet());
}
//Old POJO main method
public static void init() throws InterruptedException {
try {
Map<SituationRecord, Integer> map = new HashMap<> ();
while (true) {
URL url = new URL (" http://infocar.dgt.es/datex2/dgt/SituationPublication/all/content.xml");
Map<SituationRecord, Integer> copia = map;
map = Traslator.traslator (copia, url);
sleep (120000);
//Preubassleep(30000);
}
} catch (TransformerConfigurationException | JAXBException | ParserConfigurationException | IOException e) {
e.printStackTrace ();
}
}
}
web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
id="WebApp_ID" version="3.1">
<display-name>CTAG DATEX2</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>org.CTAG.DATEX2REST</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>jersey</servlet-name>
<url-pattern>/rest*</url-pattern>
</servlet-mapping>
</web-app>
最佳答案
看来您的 servlet 映射是错误的,应该如下所示,您需要告诉 servlet 从哪里选择带注释的类
<servlet>
<servlet-name>jersey</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.packages</param-name>
<param-value>com.CTAG.rest</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>jersey</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
关于java - RESTful Jersey 请求的资源不可用,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/39911946/