REST WebService的多资源路径

package com.easyway.jersey.rest;import java.util.HashSet;import java.util.Set;import javax.ws.rs.core.Application;import javax.ws.rs.ApplicationPath;/** *注册所有的服务 *  1.继承自 javax.ws.rs.core.Application *  2.使用 ApplicationPath注解类 * @author longgangbai *  *  *  */@ApplicationPath("resources")public class CustomerApplication extends Application {/** * 注册各种资源 */    @Override    public Set<Class<?>> getClasses() {        final Set<Class<?>> classes = new HashSet<Class<?>>();        // register root resources/providers        classes.add(MasterResourceService.class);        classes.add(TextPlainService.class);        classes.add(SimpleTextPlainService.class);        classes.add(MultiplePathService.class);        classes.add(MultipleService.class);                return classes;    }}

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package com.easyway.jersey.rest;import java.io.InputStream;import javax.servlet.ServletContext;import javax.ws.rs.GET;import javax.ws.rs.Produces;import javax.ws.rs.Path;import javax.ws.rs.core.Context;/** * 创建一个主的REST服务的 * @author longgangbai * */@Path("/start")public class MasterResourceService  {    /** * 获取Web容器相关的信息 */    @Context     ServletContext sc;        /**     * 设置将获取的资源转换为流信息在页面index.html显示     * @return     */    @GET    @Produces("text/html")    public InputStream doGet() {        return sc.getResourceAsStream("/index.html");    }    }

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package com.easyway.jersey.rest;import com.sun.jersey.api.representation.Form;import java.net.URL;import javax.activation.DataSource;import javax.activation.FileDataSource;import javax.ws.rs.GET;import javax.ws.rs.POST;import javax.ws.rs.Produces;import javax.ws.rs.Path;import javax.ws.rs.PathParam;import javax.ws.rs.core.Context;import javax.ws.rs.core.MultivaluedMap;import javax.ws.rs.core.Response;import javax.ws.rs.core.UriInfo;import javax.ws.rs.core.MediaType;/** * 这个类比较特殊采用多层次的匹配格式调用不同的方法 *  * @author longgangbai * */@Path("/multiplePathService/{arg1}/{arg2}")public class MultiplePathService  {        //获取请求的各种参数@Context     UriInfo uriInfo;        int count =0;        /**     *      * 在post方式下返回的结果     */    @POST    public void doPost() {        System.out.println("MultiplePathService POST");    }        /**     * 这个方法并不具有具体的方法实现，只提供判断服务的去向，调用的方法     *      * @return     */    @GET    public Response doGet() {        MultivaluedMap<String, String> params = uriInfo.getPathParameters();        String arg1 = params.getFirst("arg1");        String arg2 = params.getFirst("arg2");        //输出相关的查询参数        for (String key : uriInfo.getQueryParameters().keySet())            System.out.println("key: " + key + " value: " + uriInfo.getQueryParameters().getFirst(key));        //获取查询参数        int rep = Integer.parseInt(uriInfo.getQueryParameters().getFirst("rep"));               String help = "<pre>Received args: arg1: "+arg1+" arg2: "+arg2+"\n"                    +"Please specify a \"rep\" queryParameter using one of the following values\n"                    +"For example, http://localhost:8080/AdvanceJersey/resources/multiplePathService/2/4?rep=0 \n"                    +"Valid Representations:\n"                    +"\t0 - StringRepresentation of this message\n"                    +"\t1 - StringRepresentation\n"                    +"\t2 - FormURLEncodedRepresentation\n"                    +"\t3 - DataSourceRepresentation\n</pre>";        Response r = null;        System.out.println("rep: "+rep);        switch (rep) {            case 0:                     //请求帮助                r = Response.ok(help, MediaType.TEXT_PLAIN).                        header("resource3-header", MediaType.TEXT_PLAIN).build();                break;            case 1:            //                r = Response.ok(getStringRep(arg1, arg2),MediaType.TEXT_PLAIN).                        header("resource3-header",MediaType.TEXT_PLAIN).build();                break;            case 2:                r = Response.ok(getFormURLEncodedRep(arg1, arg2), "application/x-www-form-urlencoded").                        header("resource3-header", "application/x-www-form-urlencoded").build();                break;            case 3:                r = Response.ok(getImageRep(), "image/jpg").                        header("resource3-header", "image/jpg").build();                break;            default :                r = Response.ok(help, MediaType.TEXT_PLAIN).build();                break;        }                        return r;    }    /**     * 此方法的请求的路径为：     *    http://localhost:8080/AdvanceJersey/resources/multiplePathService/2/4?rep=0     * @param arg1     * @param arg2     * @return     */    @Produces(MediaType.TEXT_PLAIN)    @GET    public String getStringRep(@PathParam("arg1")String arg1,             @PathParam("arg2")String arg2) {        return "representation: StringRepresentation: arg1: "                        +arg1+" arg2: "+arg2+"\n\n";    }        /**       /**     * 此方法的请求的路径为：     *    http://localhost:8080/AdvanceJersey/resources/multiplePathService/2/4?rep=2     * 上传下载使用这种表单类型     *      * @param arg1     * @param arg2     * @return     */    @Produces(MediaType.APPLICATION_FORM_URLENCODED)    @GET    public Form getFormURLEncodedRep(            @PathParam("arg1")String arg1,             @PathParam("arg2")String arg2) {        Form urlProps = new Form();        urlProps.add("representation", "FormURLEncodedRepresentation");        urlProps.add("name", "Master Duke");        urlProps.add("sex", "male");        urlProps.add("arg1", arg1);        urlProps.add("arg2", arg2);        return urlProps;            }    /**     * 此方法的请求的路径为：     *    http://localhost:8080/AdvanceJersey/resources/multiplePathService/2/4?rep=3     *        *     * @return    */    @Produces("image/jpg")    @GET    public DataSource getImageRep() {        URL jpgURL =this.getClass().getResource("java.jpg");        return new FileDataSource(jpgURL.getFile());          }    }

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package com.easyway.jersey.rest;import javax.ws.rs.Consumes;import javax.ws.rs.GET;import javax.ws.rs.POST;import javax.ws.rs.Path;import javax.ws.rs.Produces;import javax.ws.rs.QueryParam;import javax.ws.rs.core.MediaType;import javax.ws.rs.core.Response;/** * 这个类比较特殊在拥有多个Path解析路径，采用模糊匹配的模式到相应的结果 *  * @author longgangbai * */@Path("/multipleService")@Consumes(MediaType.TEXT_PLAIN)public class MultipleService {        public MultipleService() {    }        /**     * 访问路径：       *    http://localhost:8080/AdvanceJersey/resources/multipleService?format=text/html     * html格式返回     * @return     */    @GET    @Produces(MediaType.TEXT_HTML)    public String getAsHtml() {        return "<html><head></head><body><p>Hello World</p></body></html>";    }    /**     * 访问路径：       *    http://localhost:8080/AdvanceJersey/resources/multipleService?format=text/xml     * xml格式返回     * @return     */    @GET    @Produces(MediaType.TEXT_XML)    public String getAsXml() {        return "<response>Hello World</response>";    }        /**     * 访问路径：       *    http://localhost:8080/AdvanceJersey/resources/multipleService?format=text/plain     * 文件形式返回     * @return     */    @GET    @Produces(MediaType.TEXT_PLAIN)    public String getAsText() {        return "Hello World";    }        /**     * 针对GET方式发送请求中     * http://localhost:8080/AdvanceJersey/resources/multipleService?format=mediaType     *      * 根据format对应的mediaType的值，调用相关的类型     *      * 参数判断输出的格式的类型的，并返回相应的结果     */    @GET    @Produces(MediaType.WILDCARD)    public Response get(@QueryParam("format") String format) {    //调用相应的相应类型        return Response.ok("Hello World", format).build();    }        /**     * Post请求的处理     * http://localhost:8080/AdvanceJersey/resources/multipleService     *      * 文本格式相应     * @param input     * @return     */    @POST    @Produces(MediaType.TEXT_PLAIN)    public String postText(String input) {        return input;    }    }

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package com.easyway.jersey.rest;import javax.ws.rs.GET;import javax.ws.rs.Produces;import javax.ws.rs.Path;import javax.ws.rs.core.MediaType;/** *  * @author longgangbai * *  访问路径如下： *     http://localhost:8080/AdvanceJersey/resources/simpleTextPlainService *     备注：AdvanceJersey 为应用上下文 *          resources为主资源服务CustomerApplication路径 *          simpleTextPlainService：本服务的路径 *           */@Path("/simpleTextPlainService")public class SimpleTextPlainService {            @GET    @Produces(MediaType.TEXT_PLAIN)    public String describe() {     //  public static final String MEDIA_TYPE_WILDCARD = "*";     // public static final String WILDCARD = "*/*";     // public static final MediaType WILDCARD_TYPE = new MediaType();     // public static final String APPLICATION_XML = "application/xml";     // public static final MediaType APPLICATION_XML_TYPE = new MediaType("application", "xml");     // public static final String APPLICATION_ATOM_XML = "application/atom+xml";     // public static final MediaType APPLICATION_ATOM_XML_TYPE = new MediaType("application", "atom+xml");     // public static final String APPLICATION_XHTML_XML = "application/xhtml+xml";     // public static final MediaType APPLICATION_XHTML_XML_TYPE = new MediaType("application", "xhtml+xml");     // public static final String APPLICATION_SVG_XML = "application/svg+xml";     // public static final MediaType APPLICATION_SVG_XML_TYPE = new MediaType("application", "svg+xml");     // public static final String APPLICATION_JSON = "application/json";     // public static final MediaType APPLICATION_JSON_TYPE = new MediaType("application", "json");     // public static final String APPLICATION_FORM_URLENCODED = "application/x-www-form-urlencoded";     // public static final MediaType APPLICATION_FORM_URLENCODED_TYPE = new MediaType("application", "x-www-form-urlencoded");     // public static final String MULTIPART_FORM_DATA = "multipart/form-data";     // public static final MediaType MULTIPART_FORM_DATA_TYPE = new MediaType("multipart", "form-data");     // public static final String APPLICATION_OCTET_STREAM = "application/octet-stream";     // public static final MediaType APPLICATION_OCTET_STREAM_TYPE = new MediaType("application", "octet-stream");     // public static final String TEXT_PLAIN = "text/plain";     // public static final MediaType TEXT_PLAIN_TYPE = new MediaType("text", "plain");     // public static final String TEXT_XML = "text/xml";     // public static final MediaType TEXT_XML_TYPE = new MediaType("text", "xml");     // public static final String TEXT_HTML = "text/html";     // public static final MediaType TEXT_HTML_TYPE = new MediaType("text", "html");        return "Hello World from SimpleTextPlainService resource ";    }    }

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package com.easyway.jersey.rest;import javax.servlet.ServletConfig;import javax.servlet.http.HttpServletRequest;import javax.ws.rs.GET;import javax.ws.rs.core.MediaType;import javax.ws.rs.Produces;import javax.ws.rs.Path;import javax.ws.rs.core.Context;/** * 获取Servlet Context信息 * @author longgangbai * */@Path("/textPlainService")public class TextPlainService {    /**     *      */    @Context    HttpServletRequest servletRequest;        @Context    ServletConfig servletConfig;        /**     * 获取Servlet Context的一些信息     * @return     */    @GET    @Produces(MediaType.TEXT_PLAIN)    public String describe() {        return "Hello World from TextPlainService  resource 1 in servlet: '" +                servletConfig.getServletName() +                "', path: '" +                servletRequest.getServletPath() +                "'";    }    }

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web.xml配置如下：

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" 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_2_5.xsd">  <servlet>        <servlet-name>RESTAPP</servlet-name>        <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>        <init-param>            <param-name>javax.ws.rs.Application</param-name>            <param-value>com.easyway.jersey.rest.CustomerApplication</param-value>        </init-param>                <load-on-startup>1</load-on-startup>    </servlet>    <servlet-mapping>        <servlet-name>RESTAPP</servlet-name>        <url-pattern>/resources/*</url-pattern>    </servlet-mapping>    <session-config>        <session-timeout>            30        </session-timeout>    </session-config></web-app>

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附件为源代码：

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