简单更改后 REST 服务不起作用 [英] REST Service doesn't work after a simple change

问题描述

我按照本教程学习了一些 REST 服务和 AJAX 调用:http://www.mkyong.com/webservices/jax-rs/integrate-jackson-with-resteasy/

I follow this tutorial to learn some REST services and AJAX calls: http://www.mkyong.com/webservices/jax-rs/integrate-jackson-with-resteasy/

我改变了这个端点:

@GET
@Path("/get")
@Produces("application/json")
public Product getProductInJSON() {

    Product product = new Product();
    product.setName("iPad 3");
    product.setQty(999);

    return product; 

}

到这个，为了返回jsonp格式的产品:

to this one, in order to return the product in the jsonp format:

@GET
@Path("/get?callback={name}")
@Produces("application/javascript")
public String getProductInJSON(@PathParam("name") String callback){

    Product product = new Product();
    product.setName("iPad 3");
    product.setQty(999);

    String productString = callback + "({" + product.toString() + "})";

    return productString; 

}

使用产品的 toString():

with the toString() of product:

@Override
public String toString() {
    return "name:" + name + "," + "qty:" + qty;
}

但是现在，当我检查 ir URI 在浏览器中工作时，使用:

But now, when I check ir the URI works in the browser, with:

http://localhost:8080/restws/json/product/get?回调=进程

我收到此错误消息:

HTTP 错误:404

HTTP ERROR: 404

找不到相对资源:/json/product/get 的完整路径:http://localhost:8080/restws/json/product/get?callback=process

Could not find resource for relative : /json/product/get of full path: http://localhost:8080/restws/json/product/get?callback=process

RequestURI=/restws/json/product/get

RequestURI=/restws/json/product/get

有人能帮我理解为什么在这个小改动后给我这个错误吗?谢谢

Can somebody help me with understanding why it's giving me this error after this minor changing? Thanks

推荐答案

查询参数不是@Path 的一部分.您应该使用 @QueryParam 处理它们，如图所示在泽西岛用户指南中.

A query parameter isn't part of the @Path. You should handle them with @QueryParam as shown in the Jersey User Guide.

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