我正在尝试使用Java创建一个非常简单的REST Web服务,但我无法正确地获得映射...
这是我的服务:
package rest;
@Path("/square/{num}")
public class SquareNumberRest {
@GET
@Produces(MediaType.APPLICATION_JSON)
public String squareNum(@PathParam("num") String num) {
int n = Integer.parseInt(num);
int squared = n * n;
JSONObject jo = new JSONObject(squared);
return jo.toString();
}
}
我的web.xml描述符:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>TestProject</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>Jersey REST Service</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>rest</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
我尝试在以下网址上使用该服务: http://localhost:8080/MyProjectName/square/3
但我收到404错误。
答案 0 :(得分:1)
您是否为项目定义了URL上下文?项目的URL根目录可能是localhost:8080,这意味着你需要做