# 接出调用示例
## **说明**
通讯前置报文、接出配置完成后，其使用方式主要包含两种情形，一是配置接入，在接入的流程中配置使用接出和报文组包、解包；二是 通过接口的方式在其他业务系统调用前置服务的组包、解包、接出通讯。
因此，使用通讯前置进行接出通讯时有两种配置方案：
- 第一：配置一个通讯接入，协议类型可以配置一个最简单的http协议，在该通讯接入有发出接出
- 第二：使用api调用通讯服务的接口进行通讯接出
## **接口调用**
#### **1、接出调用**
```
<pre class="calibre29">```
@<span class="token5">SuppressWarnings</span><span class="token1">(</span><span class="token3">"unchecked"</span><span class="token1">)</span>
public Object <span class="token5">P_callExternSys</span><span class="token1">(</span>String sysid<span class="token1">,</span> String trancode<span class="token1">,</span> Object request<span class="token1">)</span> <span class="token1">{</span>
Map<span class="token"><</span>String<span class="token1">,</span> Object<span class="token">></span> mapResp <span class="token">=</span> <span class="token4">null</span><span class="token1">;</span>
<span class="token4">try</span> <span class="token1">{</span>
Map<span class="token"><</span>String<span class="token1">,</span> Object<span class="token">></span> mapReq <span class="token">=</span> <span class="token4">new</span> <span class="token5">LinkedHashMap</span><span class="token"><</span>String<span class="token1">,</span> Object<span class="token">></span><span class="token1">(</span><span class="token1">)</span><span class="token1">;</span>
mapReq<span class="token1">.</span><span class="token5">put</span><span class="token1">(</span><span class="token3">"remote"</span><span class="token1">,</span> sysid<span class="token1">)</span><span class="token1">;</span><span class="token6">// YFE接出节点编码</span>
mapReq<span class="token1">.</span><span class="token5">put</span><span class="token1">(</span><span class="token3">"transCode"</span><span class="token1">,</span> trancode<span class="token1">)</span><span class="token1">;</span><span class="token6">// 交易码</span>
mapReq<span class="token1">.</span><span class="token5">put</span><span class="token1">(</span><span class="token3">"request"</span><span class="token1">,</span> request<span class="token1">)</span><span class="token1">;</span><span class="token6">// 参数</span>
<span class="token6">// 可以直接使用spring ioc注入</span>
RestTemplate restTemplate <span class="token">=</span> SpringContextHolder<span class="token1">.</span><span class="token5">getBean</span><span class="token1">(</span><span class="token3">"balancedTemplate"</span><span class="token1">)</span><span class="token1">;</span>
<span class="token6">// yfe的接出调用地址、需要注意是使用IP还是服务名调用</span>
String strUrl <span class="token">=</span> <span class="token3">"http://sca-commservice/yfasvc/yfeTransProc"</span><span class="token1">;</span>
mapResp <span class="token">=</span> restTemplate<span class="token1">.</span><span class="token5">postForObject</span><span class="token1">(</span>strUrl<span class="token1">,</span> mapReq<span class="token1">,</span> Map<span class="token1">.</span>class<span class="token1">)</span><span class="token1">;</span>
<span class="token4">return</span> mapResp<span class="token1">;</span>
<span class="token1">}</span> <span class="token4">catch</span> <span class="token1">(</span><span class="token5">Exception</span> ex<span class="token1">)</span> <span class="token1">{</span>
log<span class="token1">.</span><span class="token5">error</span><span class="token1">(</span><span class="token3">"error:"</span><span class="token1">,</span> ex<span class="token1">)</span><span class="token1">;</span>
<span class="token1">}</span>
<span class="token4">return</span> mapResp<span class="token1">;</span>
<span class="token1">}</span>
```
```
#### **2、解包调用**
```
<pre class="calibre29">```
@<span class="token5">SuppressWarnings</span><span class="token1">(</span><span class="token3">"unchecked"</span><span class="token1">)</span>
public Object <span class="token5">P_yfeUnpack</span><span class="token1">(</span>String system<span class="token1">,</span> String tardeNo<span class="token1">,</span> String tag<span class="token1">)</span> <span class="token1">{</span>
Map<span class="token"><</span>String<span class="token1">,</span> Object<span class="token">></span> mapResp <span class="token">=</span> <span class="token4">null</span><span class="token1">;</span>
<span class="token4">try</span> <span class="token1">{</span>
Map<span class="token"><</span>String<span class="token1">,</span> Object<span class="token">></span> mapReq <span class="token">=</span> <span class="token4">new</span> <span class="token5">LinkedHashMap</span><span class="token"><</span>String<span class="token1">,</span> Object<span class="token">></span><span class="token1">(</span><span class="token1">)</span><span class="token1">;</span>
mapReq<span class="token1">.</span><span class="token5">put</span><span class="token1">(</span><span class="token3">"system"</span><span class="token1">,</span> system<span class="token1">)</span><span class="token1">;</span>
mapReq<span class="token1">.</span><span class="token5">put</span><span class="token1">(</span><span class="token3">"transCode"</span><span class="token1">,</span> tardeNo<span class="token1">)</span><span class="token1">;</span>
mapReq<span class="token1">.</span><span class="token5">put</span><span class="token1">(</span><span class="token3">"request"</span><span class="token1">,</span> tag<span class="token1">)</span><span class="token1">;</span>
RestTemplate restTemplate <span class="token">=</span> SpringContextHolder<span class="token1">.</span><span class="token5">getBean</span><span class="token1">(</span><span class="token3">"balancedTemplate"</span><span class="token1">)</span><span class="token1">;</span>
String strUrl <span class="token">=</span> <span class="token3">"http://sca-commservice/yfasvc/yfeUnPackMsg"</span><span class="token1">;</span>
mapResp <span class="token">=</span> restTemplate<span class="token1">.</span><span class="token5">postForObject</span><span class="token1">(</span>strUrl<span class="token1">,</span> mapReq<span class="token1">,</span> Map<span class="token1">.</span>class<span class="token1">)</span><span class="token1">;</span>
<span class="token1">}</span> <span class="token4">catch</span> <span class="token1">(</span><span class="token5">Exception</span> e<span class="token1">)</span> <span class="token1">{</span>
log<span class="token1">.</span><span class="token5">error</span><span class="token1">(</span><span class="token3">"error:"</span><span class="token1">,</span> e<span class="token1">)</span><span class="token1">;</span>
<span class="token1">}</span>
<span class="token4">return</span> mapResp<span class="token1">;</span>
<span class="token1">}</span>
```
```
#### **3、组包调用**
```
<pre class="calibre31">```
public Object <span class="token5">P_yfePack</span><span class="token1">(</span>String system<span class="token1">,</span> String tardeNo<span class="token1">,</span> Map kevalue<span class="token1">)</span> <span class="token1">{</span>
Map<span class="token"><</span>String<span class="token1">,</span> Object<span class="token">></span> mapReq <span class="token">=</span> <span class="token4">new</span> <span class="token5">LinkedHashMap</span><span class="token"><</span>String<span class="token1">,</span> Object<span class="token">></span><span class="token1">(</span><span class="token1">)</span><span class="token1">;</span>
mapReq<span class="token1">.</span><span class="token5">put</span><span class="token1">(</span><span class="token3">"system"</span><span class="token1">,</span> system<span class="token1">)</span><span class="token1">;</span>
mapReq<span class="token1">.</span><span class="token5">put</span><span class="token1">(</span><span class="token3">"transCode"</span><span class="token1">,</span> tardeNo<span class="token1">)</span><span class="token1">;</span>
mapReq<span class="token1">.</span><span class="token5">put</span><span class="token1">(</span><span class="token3">"request"</span><span class="token1">,</span> kevalue<span class="token1">)</span><span class="token1">;</span>
String respStr <span class="token">=</span> <span class="token3">""</span><span class="token1">;</span>
<span class="token4">try</span> <span class="token1">{</span>
RestTemplate restTemplate <span class="token">=</span> SpringContextHolder<span class="token1">.</span><span class="token5">getBean</span><span class="token1">(</span><span class="token3">"balancedTemplate"</span><span class="token1">)</span><span class="token1">;</span>
String strUrl <span class="token">=</span> <span class="token3">"http://sca-commservice/yfasvc/yfePackMsg"</span><span class="token1">;</span>
respStr <span class="token">=</span> restTemplate<span class="token1">.</span><span class="token5">postForObject</span><span class="token1">(</span>strUrl<span class="token1">,</span> mapReq<span class="token1">,</span> String<span class="token1">.</span>class<span class="token1">)</span><span class="token1">;</span>
<span class="token1">}</span> <span class="token4">catch</span> <span class="token1">(</span><span class="token5">Exception</span> e<span class="token1">)</span> <span class="token1">{</span>
log<span class="token1">.</span><span class="token5">error</span><span class="token1">(</span><span class="token3">"error:"</span><span class="token1">,</span> e<span class="token1">)</span><span class="token1">;</span>
<span class="token1">}</span>
<span class="token4">return</span> respStr<span class="token1">;</span>
<span class="token1">}</span>
```
```
