我希望在Salesforce中创建一个顶点代码需要来自用户的输入，然后将这些输入将被发送到外部API（这个API将转换输入JSON格式）。
1）用户将输入一个句子2）它发送到外部的API，它处理输入到JSON文件3）中检索JSON文件4）反序列化JSON文件 - 已完成
是否有任何人谁在使用Salesforce顶点编码具有先进经验？
我的页面如下：
<apex:page id="page" controller="calloutViewer_Controller" >
<apex:form id="form" >
<apex:sectionHeader title="Testing" />
<apex:pageMessages id="pageMessages" />
<apex:pageBlock >
<apex:pageBlockButtons >
<apex:commandButton value="Callout" action="{!callout}" rendered="{!$CurrentPage.parameters.offline!='1'}"/>
<apex:commandButton value="Deserialize" action="{!deserializeQuestions}" rendered="{!$CurrentPage.parameters.offline!='1'}"/>
<apex:commandButton value="Callout (offline)" action="{!callout}" rendered="{!$CurrentPage.parameters.offline=='1'}" />
<apex:commandButton value="Deserialize (offline)" action="{!deserializeQuestions}" rendered="{!$CurrentPage.parameters.offline=='1'}" />
</apex:pageBlockButtons>
<apex:pageBlockSection columns="1" title="HttpRequest" collapsible="false" >
<apex:pageBlockSectionItem >
<apex:outputLabel value="setMethod()" />
<apex:selectList size="1" value="{!requestMethod}" >
<apex:selectOptions value="{!MethodOptions}" />
</apex:selectList>
</apex:pageBlockSectionItem>
<apex:pageBlockSectionItem >
<apex:outputLabel value="setEndpoint()" />
<apex:inputText value="{!requestEndpoint}" style="width:90%" />
</apex:pageBlockSectionItem>
<apex:pageBlockSectionItem >
<apex:outputText>{!getBody}</apex:outputText>>
</apex:pageBlockSectionItem>
</apex:pageBlockSection>
<apex:pageBlockSection columns="1" title="HttpResponse" collapsible="false" >
<apex:pageBlockSectionItem >
<apex:outputLabel value="getStatusCode()" />
<apex:outputText value="{!responseStatusCode}" />
</apex:pageBlockSectionItem>
<apex:pageBlockSectionItem >
<apex:outputLabel value="getStatus()" />
<apex:outputText value="{!responseStatus}" />
</apex:pageBlockSectionItem>
<apex:pageBlockSectionItem >
<apex:outputLabel value="getBody()" />
{!responseBody}
</apex:pageBlockSectionItem>
</apex:pageBlockSection>
<apex:pageBlockSection columns="1" title="JSON Deserializer" rendered="{!deserializedQuestions != null}" collapsible="false" >
<apex:pageBlockTable value="{!deserializedQuestions}" var="i" >
<apex:column headerValue="Owner" style="width:100px;" >
<apex:outputLink value="{!i.owner.link}" target="_blank" style="width:100px;" >
<apex:image value="{!i.owner.profile_image}" alt="{!i.owner.display_name}" style="height:30%; width:30%;" /><br/>{!i.owner.display_name}
</apex:outputLink>
</apex:column>
<apex:column headerValue="Question Id" style="width:75px;" >
<apex:outputText value="{!i.question_id}" />
</apex:column>
<apex:column headerValue="Creation Date" style="width:75px;" >
<apex:outputText value="{!i.creation_date}" />
</apex:column>
<apex:column headerValue="View Count" style="width:75px;" >
<apex:outputText value="{!i.view_count}" />
</apex:column>
<apex:column headerValue="Answer Count" style="width:75px;" >
<apex:outputText value="{!i.answer_count}" />
</apex:column>
<apex:column headerValue="Score" style="width:50px;" >
<apex:outputText value="{!i.score}" />
</apex:column>
<apex:column headerValue="Title" >
<apex:outputLink value="{!i.link}" target="_blank" ><apex:outputText value="{!i.title}" /></apex:outputLink>
</apex:column>
</apex:pageBlockTable>
</apex:pageBlockSection>
</apex:pageBlock>
</apex:form>
</apex:page>
我的顶点控制器：
public with sharing class calloutViewer_Controller {
public String requestEndpoint {get;set;}
public String requestMethod {get;set;}
public String requestBody {get;set;}
public String responseStatus {get;set;}
public Integer responseStatusCode {get;set;}
public String responseBody {get;set;}
public stackExchangeAPI.responseResource response {get;set;}
public List<stackExchangeAPI.questionResource> deserializedQuestions {get;set;}
public calloutViewer_Controller(){
requestEndpoint = stackExchangeAPI.compileEndpoint(
'questions/unanswered',
'salesforce',
1,
50,
system.today().addDays(-1),
system.today(),
'desc',
system.today().addDays(-1),
system.today(),
'activity',
''
);
}
public void callout(){
httpResponse res = stackExchangeAPI.callout(requestMethod, requestEndpoint, requestBody);
responseStatus = res.getStatus();
responseStatusCode = res.getStatusCode();
responseBody = res.getBody();
}
public void deserializeQuestions(){
if ( string.isNotBlank(responseBody) ){
response = (stackExchangeAPI.responseResource)JSON.deserialize(responseBody,stackExchangeAPI.responseResource.class);
deserializedQuestions = response.items;
}
}
public List<SelectOption> getMethodOptions(){
List<SelectOption> options = new List<SelectOption>();
options.add(new SelectOption('GET','GET'));
options.add(new SelectOption('POST','POST'));
options.add(new SelectOption('PUT','PUT'));
options.add(new SelectOption('DELETE','DELETE'));
options.add(new SelectOption('HEAD','HEAD'));
return options;
}
}
我的顶点类：
public with sharing class stackExchangeAPI {
public static String BASE_URL = 'https://api.stackexchange.com/2.2/';
//Method to perform a callout and return an httpResponse
public static httpResponse callout(String httpMethod, String endpoint, String body){
//Instantiate an httpRequest and set the required attributes
httpRequest req = new httpRequest();
req.setMethod(httpMethod);
req.setEndpoint(endpoint);
//Optional attributes are often required to conform to the 3rd Party Web Service Requirements
req.setHeader('Accept-Encoding','gzip, deflate');
//You can adjust the timeout duration (in milliseconds) to deal with slow servers or large payloads
req.setTimeout(120000);
//Use the HTTP Class to send the httpRequest and receive an httpResposne
/*If you are not using an HttpCalloutMock:
if (!test.isRunningTest){
*/
httpResponse res = new http().send(req);
/*If you are not using an HttpCalloutMock:
}
*/
system.debug(res.toString());
system.debug(res.getBody());
return res;
}
//Method to deserialize the response body
public static responseResource deserialize(httpResponse res){
return (responseResource)JSON.deserialize(res.getBody(),responseResource.class);
}
/********************* Apex Inner Classes to represent StackExchange objects ***********************/
//Outermost class included in the response from StackExchange
public class responseResource {
public Integer error_id {get;set;}
public String error_message {get;set;}
public String error_name {get;set;}
public Boolean hasMore {get;set;}
public List<questionResource> items {get;set;}
public Integer quote_max {get;set;}
public Integer quote_remaining {get;set;}
}
//Class to represent a question posted on StackExchange
public class questionResource {
public List<String> tags {get;set;}
public userResource owner {get;set;}
public Boolean is_answered {get;set;}
public Integer view_count {get;set;}
public Integer answer_count {get;set;}
public Integer score {get;set;}
public long last_activity_date {get;set;}
public long creation_date {get;set;}
public long last_edit_date {get;set;}
public integer question_id {get;set;}
public String link {get;set;}
public String title {get;set;}
}
//Class to represent a registered User of StackExchange
public class userResource {
public String reputation {get;set;}
public String user_id {get;set;}
public String user_type {get;set;}
public String profile_image {get;set;}
public String display_name {get;set;}
public String link {get;set;}
}
/********************* Other Useful Methods ***********************/
// http://api.stackexchange.com/2.2/questions/unanswered?page=1&pagesize=50&fromdate=1396310400&todate=1398816000&order=desc&min=1396310400&max=1397606400&sort=activity&tagged=google-compute-engine&site=stackoverflow
public static responseResource questions_Unanswered(String site, Integer page, Integer pagesize, Date fromdate, Date todate, String order, Date min, Date max, String sortParam, String tagged){
httpResponse res = callout('GET', compileEndpoint('questions/unanswered',site,page,pagesize,fromdate,todate,order,min,max,sortParam,tagged) , null);
if ( res.getStatusCode() == 200 && string.isNotBlank(res.getBody()) ){
return deserialize(res);
}
return null;
}
public static String compileEndpoint(String call, String site, Integer page, Integer pagesize, Date fromdate, Date todate, String order, Date min, Date max, String sortParam, String tagged){
PageReference endpoint = new PageReference(BASE_URL+call);
if ( string.isNotBlank(site) ){
endpoint.getParameters().put('site',site);
}
if ( page != null && page > 0 ){
endpoint.getParameters().put('page',string.valueOf(page));
}
if ( pagesize != null ){
endpoint.getParameters().put('pagesize',string.valueOf(pagesize));
}
if ( fromdate != null ){
endpoint.getParameters().put('fromdate',string.valueOf(dateTime.newInstance(fromdate,time.newInstance(0,0,0,0)).getTime()/1000));
}
if ( todate != null ){
endpoint.getParameters().put('todate',string.valueOf(dateTime.newInstance(todate,time.newInstance(0,0,0,0)).getTime()/1000));
}
endpoint.getParameters().put('order','desc');
if ( string.isNotBlank(order) ){
endpoint.getParameters().put('order',order);
}
if ( min != null ){
endpoint.getParameters().put('min',string.valueOf(dateTime.newInstance(min,time.newInstance(0,0,0,0)).getTime()/1000));
}
if ( max != null ){
endpoint.getParameters().put('max',string.valueOf(dateTime.newInstance(max,time.newInstance(0,0,0,0)).getTime()/1000));
}
endpoint.getParameters().put('sort','activity');
if ( string.isNotBlank(sortParam) ){
endpoint.getParameters().put('sort',sortParam);
}
if ( string.isNotBlank(tagged) ){
endpoint.getParameters().put('tagged',tagged);
}
return endpoint.getURL();
}
}
我怎样才能改变我的代码，以便有另一个pageblockitem如“输入”，然后控制器将以此为输入，并将其发送到服务器。 最后，使用使用setMethod（“GET”）返回反序列化之前的JSON文件？
