因为准备要做一个关于调用外部接口的需求，所以自己先练习一下。
程序说明：我已经在.net开发的系统里提供一个api接口，现在在sap访问这个接口，来接收数据。
这里涉及Restful Api知识，以后再分享。
这是一个api地址：http://10.X.X.X:8081/api/test/gettest
首先根据这个url创建一个http客户端
call method cl_http_client=>create_by_url
exporting
url = url
importing
client = http_client
exceptions
argument_not_found = 1
plugin_not_active = 2
internal_error = 3
others = 4.
选择一个HTTP GET METHOD
http_client->request->set_method( if_http_request=>co_request_method_get ).
发送和接收数据
"发送
call method http_client->send
exceptions
http_communication_failure = 1
http_invalid_state = 2
http_processing_failed = 3
http_invalid_timeout = 4
others = 5. "接收
call method http_client->receive
exceptions
http_communication_failure = 1
http_invalid_state = 2
http_processing_failed = 3.
最后就可以获取接收的数据了
"获取接口返回的数据
result = http_client->response->get_cdata( ). write: result.
输出结果是这样的
跟外部系统返回的数据是一致的。
附上完整代码
data: len type i,"发送报文长度
len_string type string,
url type string, "接口地址
http_client type ref to if_http_client,"http客户端
post_string type string,
result type string. data: it_header type tihttpnvp. start-of-selection. url = 'http://10.X.X.X:8081/api/test/gettest'. "创建http客户端
call method cl_http_client=>create_by_url
exporting
url = url
importing
client = http_client
exceptions
argument_not_found = 1
plugin_not_active = 2
internal_error = 3
others = 4. "设置http method 为Get
http_client->request->set_method( if_http_request=>co_request_method_get ). "发送
call method http_client->send
exceptions
http_communication_failure = 1
http_invalid_state = 2
http_processing_failed = 3
http_invalid_timeout = 4
others = 5. "接收
call method http_client->receive
exceptions
http_communication_failure = 1
http_invalid_state = 2
http_processing_failed = 3. "获取接口返回的数据
result = http_client->response->get_cdata( ). write: result.
以后会继续分享用POST方法发送数据到外部接口的例子。
作者：明光烁亮
出处：http://www.cnblogs.com/hezhongxun/
微信号：HEme922 欢迎加好友一起交流SAP!
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