在@GraphqQuery方法中读取请求头的方法是通过使用GraphQL的上下文对象来获取请求头信息。在大多数GraphQL框架中,可以通过在解析器函数中添加一个额外的参数来访问上下文对象。具体步骤如下:
public class MyQueryResolver implements GraphQLQueryResolver {
public String myQuery( DataFetchingEnvironment env, MyContext context) {
// 在这里可以访问上下文对象
String authorizationHeader = context.getRequest().getHeader("Authorization");
// 其他处理逻辑
return "Hello World";
}
}
public class MyContext {
private HttpServletRequest request;
public MyContext(HttpServletRequest request) {
this.request = request;
}
public HttpServletRequest getRequest() {
return request;
}
}
public class MyGraphQLServlet extends SimpleGraphQLServlet {
@Override
protected GraphQLContext createContext(Optional<HttpServletRequest> request, Optional<HttpServletResponse> response) {
return new MyContext(request.orElse(null));
}
}
public class MyGraphQLServlet extends SimpleGraphQLServlet {
public MyGraphQLServlet() {
super(buildSchema());
}
private static GraphQLSchema buildSchema() {
// 构建GraphQLSchema
return GraphQLSchema.newSchema()
.query(GraphQLObjectType.newObject()
.name("Query")
.field(field -> field
.name("myQuery")
.type(Scalars.GraphQLString)
.argument(arg -> arg
.name("input")
.type(Scalars.GraphQLString))
.dataFetcher(new MyQueryResolver())
)
.build())
.build();
}
@Override
protected GraphQLContext createContext(Optional<HttpServletRequest> request, Optional<HttpServletResponse> response) {
return new MyContext(request.orElse(null));
}
}
通过以上步骤,你就可以在@GraphqQuery方法中读取请求头信息了。请注意,具体实现方式可能因使用的GraphQL框架而有所不同,上述示例仅供参考。
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