Question

我有一个POST方法（需要一些JSON数据）。我还想访问路径参数“ id”进行处理。但是，当我使用“ @PathParam”时，我得到了传递给请求的JSON正文。下面是我的代码：

@Path("/products")
public class PurchaseService {

    @POST
    @Consumes("application/json")
    @Path("{id}/purchase")
    @Produces(MediaType.APPLICATION_JSON)
    public String doPurchaseForUser(@PathParam("id") String id) {
        String result = null;
        System.out.println("Product : " + id);
        return id;
    }
}

如果我以-{“ user_id”：123}的形式传递POST正文，则上面代码中的id变量将保存此值，而不是URI中的id值。我在做什么错了？

Answer 1

用#include <iostream> #include <vector> using namespace std; int main() { int candidates = 0; // Number of candidates int voters = 0; // Number of voters cout<<"Enter the number of candidates and voters\n"; cin >> candidates >> voters; vector<int> result(candidates, 0); // Vector to hold the results // Do voting; you can count the votes immediately, // so no need of a vector to hold the votes. int vote = 0; for( int i = 0; i < voters; ++i ) { cout<<"Enter vote by voter "<<i+1<<':'; while( (vote <= 0) || (vote > candidates) ) cin >> vote; // if the entered votes are invalid, user enters the number again ++result[vote-1]; // credit candidate for whom the vote was cast vote = 0; // reset vote }; // Find the winner; there are standard C++ functions for this, // but we will do it by hand for now. int winner = 0; cout<<"\nResults: \n"; for( int j = 0; j < candidates; ++j ) { if(result[winner] < result[j]) winner = j; // If someone has more votes, he is the winner cout<<"Candidate "<<(j+1)<<": "<<result[j]<<'\n'; } cout<<"The winner is: "<<winner+1<<"\n"; return 0; }注释方法时，意味着您正在告诉Web服务：此方法正在等待json格式的对象作为参数。这就是为什么您的String id使用json内容的原因。

@Consumes ("application/json")

公共类PurchaseService {

@Path("/products")

}

您的通话网址如下所示 @POST @Consumes("application/json") @Path("/purchase") @Produces(MediaType.APPLICATION_JSON) public String doPurchaseForUser(@QueryParam("id") String id,JsonObject jsonContent) { String result = null; System.out.println("Product : " + id); return id; }

Answer 2

您输入了错误的@PathParam。它应该是javax.ws.rs.PathParam。您可能正在导入websocket一个（当您具有javaee-api依赖项时，这是一个常见错误）。

@PathParam没有给我路径变量

2 个答案: