Question

我必须在网络应用中编写一个小脚本。这个网络应用程序有其局限性但与此在线控制台类似：https://groovyconsole.appspot.com/所以如果它在这里工作，它也适用于我的问题。

我需要解析JSON响应。为简单起见，我使用C＃开发了自己的Web API，当我在浏览器中输入链接（http://localhost:3000/Test）时，它会给出这个字符串：

{"Code":1,"Message":"This is just a test"}

我想得到这个字符串，然后解析它，我猜JsonSplunker。经过数小时的研究，最引人注目的样本将是：

import groovyx.net.http.RESTClient

def client = new RESTClient( 'http://www.acme.com/' )
def resp = client.get( path : 'products/3322' ) // ACME boomerang

assert resp.status == 200  // HTTP response code; 404 means not found, etc.
println resp.getData()

（取自此处：http://rest.elkstein.org/2008/02/using-rest-in-groovy.html）

然而，它无法识别import groovyx.net.http.RESTClient。您可以尝试在提供的groovy web sonsole中测试它，您将收到错误。

我尝试import groovyx.net.http.RESTClient.*但仍然没有成功。

Answer 1

Here is a simple Groovy script将HTTP POST发送到在线服务器并使用JsonSlurper解析响应。

此脚本可以在您的计算机上独立运行;它可能不适用于在线Groovy REPL。它使用Apache HTTPClient jar，它通过@Grab添加到类路径中。

对于项目，不会使用此方法，而是将jar添加到Gradle中的类路径中。

Answer 2

如果问题在于导入swal({ type: 'question', title: 'Confirm recipient details', html: '<p style="color:#C00; padding-bottom:0px; margin-bottom:0px"> Cloud only terms and conditions</p> <div class="swal_input_wrapper"> <div class="label_wrapper">Email: </div> <input id="swal-input1" style="width:75%" class="swal2-input" autofocus><br/> <div class="label_wrapper">Recipient: </div> <input id="swal-input2" style="width:75%" class="swal2-input"></div><br/> <div class="label_wrapper">Message: </div> <textarea id="swal-input3" style="width:75%" class="swal2-textarea"></textarea> </div>', preConfirm: function() { return new Promise(function(resolve) { resolve([ $('#swal-input1').val(), $('#swal-input2').val(), $('#swal-input3').text() ]); }); } }).then(function(result) { //values from inputs (results is an array) email = result[0]; email_name = result[1]; email_message = result[2]; alert(email_name); }).done();，那么您就错过了依赖关系$('#swal-input3').text() $('#swal-input3').val() $('#swal-input3').html()。

如果您只处理一个独立的Groovy脚本，您可以使用Groovy的Grape来获取依赖项。以下是groovyx.net.http.RESTClient home page {<3}}中的一个示例：

org.codehaus.groovy.modules.http-builder:http-builder

如果您的网络应用使用依赖关系系统（例如Gradle），那么您可以使用它而不是RESTClient。

Answer 3

我试图找到一个现有的REST客户端来使用，但是我总是最终创建自己的REST客户端。我主要在Jenkins管道中使用它，如下所示：

new RestClient(this,"http://some-server.domain/gitlab")
 .get('/api/v4/projects/' + repo.id + '/hooks')
 .each { hook ->
  println "Hook: " + hook
 }

这是实际的RestClient：

package se.bjurr.jenkinssandbox

public class RestClient {
  private def baseUrl
  private def steps

  public RestClient(def steps, def baseUrl='http://localhost') {
    this.steps = steps
    this.baseUrl = baseUrl
  }

  def get(def path) {
    def responseText = ""
    steps.withCredentials([steps.string(credentialsId: 'gitlab-token', variable: 'gitlabToken')]) {
      steps.println "Using token: "+steps.env.gitlabToken +" to get \"" + baseUrl + path + "\""
      def conn = null
      try {
        conn = new URL(baseUrl+path).openConnection();
        conn.setRequestMethod("GET")
        conn.setRequestProperty("Content-Type", "application/json")
        conn.setRequestProperty("Private-Token", steps.env.gitlabToken)
        conn.setDoOutput(false)
        def postRC = conn.getResponseCode();
        responseText = conn.getInputStream().getText()
        steps.println "Got: " + postRC + "\n"+responseText
      } finally {
        conn.disconnect()
      }
      //Because classic is serilizable
      return new groovy.json.JsonSlurperClassic().parseText(responseText)
    }
  }

  def delete(def path) {
    def responseText = ""
    steps.withCredentials([steps.string(credentialsId: 'gitlab-token', variable: 'gitlabToken')]) {
      steps.println "Using token: "+steps.env.gitlabToken +" to delete \"" + baseUrl + path + "\""
      def conn = null
      try {
        conn = new URL(baseUrl+path).openConnection();
        conn.setRequestMethod("DELETE")
        conn.setRequestProperty("Private-Token", steps.env.gitlabToken)
        conn.setDoOutput(false)
        def postRC = conn.getResponseCode();
        responseText = conn.getInputStream().getText()
        steps.println "Got: " + postRC + "\n"+responseText
      } finally {
        conn.disconnect()
      }
    }
  }

  def post(def path) {
    def responseText = ""
    steps.withCredentials([steps.string(credentialsId: 'gitlab-token', variable: 'gitlabToken')]) {
      steps.println "Using token: "+steps.env.gitlabToken +" to post \"" + baseUrl + path + "\""
      def conn = null
      try {
        conn = new URL(baseUrl+path).openConnection();
        conn.setRequestMethod("POST")
        conn.setRequestProperty("Content-Type", "application/json")
        conn.setRequestProperty("Private-Token", steps.env.gitlabToken)
        conn.setDoOutput(false)
        def postRC = conn.getResponseCode();
        responseText = conn.getInputStream().getText()
        steps.println "Got: " + postRC + "\n"+responseText
      } finally {
        conn.disconnect()
      }
      //Because classic is serilizable
      return new groovy.json.JsonSlurperClassic().parseText(responseText)
    }
  }

  def post(def path, def payload) {
    def responseText = ""
    steps.withCredentials([steps.string(credentialsId: 'gitlab-token', variable: 'gitlabToken')]) {
      String jsonString = new groovy.json.JsonBuilder(payload).toPrettyString()
      steps.println "Using token: "+steps.env.gitlabToken +" to post \"" + baseUrl + path + "\" with:\n"+jsonString
      def conn = null
      try {
        conn = new URL(baseUrl+path).openConnection();
        conn.setRequestMethod("POST")
        conn.setRequestProperty("Content-Type", "application/json")
        conn.setRequestProperty("Private-Token", steps.env.gitlabToken)
        conn.setDoOutput(true)
        conn.getOutputStream().write(jsonString.getBytes("UTF-8"));
        def postRC = conn.getResponseCode();
        responseText = conn.getInputStream().getText()
        steps.println "Got: " + postRC + "\n"+responseText
      } finally {
        conn.disconnect()
      }
      //Because classic is serilizable
      return new groovy.json.JsonSlurperClassic().parseText(responseText)
    }
  }
}

如何在Groovy中获取REST响应？

3 个答案: