HTTP工具

1、(static) httpGet(url, params) → {Java.JSONObject}        请求接口（get）
示例：

(function(){
var url = "http://localhost:8080/signon/actuator/health";
var result = HTTP.httpGet(url);
getCurrentDocument().findItem("结果1").setValue(result);
})()


2、(static) httpPost(url, params) → {Java.JSONObject}        请求接口（post）
示例：

(function(){
var url = "http://localhost:8080/signon/api/runtime/login/getDomainList";
var result = HTTP.httpPost(url, null);
getCurrentDocument().findItem("结果2").setValue(result);
})()

按照上面方法，提示"HTTP" is not defined.怎么回事？

Field:test-值脚本出错 <br>JavaScriptRunning:[Form.test1.Field(__n3v8hXTYPHliJoxopxT).test.ValueScript]: ReferenceError: "HTTP" is not defined. (__n3v8hXTYPHliJoxopxT).test.ValueScript#13)