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public class HttpClientUtils {
private Logger logger = LoggerFactory.getLogger(getClass());
/**
* 发送form类型数据无附件
* @param json :请求的json
* @param url :请求路径
* @param defCharset :默认编码
* @return
* @throws Exception
*/
public String postFormForJson(String json, String url, String defCharset) throws Exception {
if (logger.isDebugEnabled())
logger.debug("发送报文[{}]", json);
// 发送报文
CloseableHttpClient client = HttpClients.createDefault();
HttpPost post = new HttpPost(url);
String resJson = "";
InputStream inputStream = null;
CloseableHttpResponse response = null;
post.addHeader("Content-Type",
"application/x-www-form-urlencoded;charset=" + defCharset);
try {
List<NameValuePair> paramsList = new ArrayList<NameValuePair>();
//将请求数据转化成map
Map<String, Object> paramMap= JsonSerializeUtil.json2Map(json);
if (null != paramMap) {
Set<String> keys = paramMap.keySet();
for (String key : keys) {
if (StringUtils.isNotBlank(key)) {
Object value = paramMap.get(key);
paramsList.add(new BasicNameValuePair(key, null == value ? "" : value.toString()));
}
}
}
UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(paramsList);
post.setEntity(formEntity);
try {
response = client.execute(post);
if(response.getStatusLine().getStatusCode()==200){
HttpEntity eneEntity = response.getEntity();
if(eneEntity!=null){
try {
inputStream = eneEntity.getContent();
resJson = IOUtils.toString(inputStream, "UTF-8");
} finally{
inputStream.close();
}
}
}
} finally{
response.close();
}
logger.debug("响应报文[{}]", resJson);
} catch (Exception e) {
logger.error("接口调用异常[{}]", e);
throw new RuntimeException(e.getMessage());
} finally {
client.close();
}
return resJson;
}
/**
* post发送json实体获取服务端获取响应
* @param jsonBody :请求的实体
* @param ur :请求路径
* @param defCharset :默认编码
* @return
* @throws Exception
*/
public String postBodyForJson(String jsonBody, String url, String defCharset)
throws Exception {
if (logger.isDebugEnabled())
logger.debug("发送报文[{}]", jsonBody);
CloseableHttpClient client = HttpClients.createDefault();
String respContent = "";
InputStream inputStream = null;
CloseableHttpResponse resp = null;
try {
HttpPost httpPost = new HttpPost(url);
StringEntity entity = new StringEntity(jsonBody, defCharset);
httpPost.setEntity(entity);
httpPost.addHeader("Content-Type", "application/json;charset="
+ defCharset);
try {
resp = client.execute(httpPost);
if (resp.getStatusLine().getStatusCode() == 200) {
HttpEntity he = resp.getEntity();
if (he != null) {
try {
inputStream = he.getContent();
respContent = IOUtils
.toString(inputStream, "UTF-8");
} finally {
inputStream.close();
}
}
}
} finally {
resp.close();
}
logger.debug("响应报文[{}]", respContent);
} catch (Exception e) {
logger.error("接口调用异常[{}]", e);
throw new RuntimeException();
} finally {
client.close();
}
return respContent;
}
/**
* 发送带有query的get的请求
*
* @param json : 请求的json
* @param url : 请求的路径
* @param defCharset : 默认编码
* @return
* @throws Exception
*/
public String getQueryForJson(String json, String url,
String defCharset) throws Exception {
if (logger.isDebugEnabled())
logger.debug("发送报文[{}]", json);
// 发送报文
CloseableHttpClient client = HttpClients.createDefault();
URIBuilder uri = new URIBuilder(url);
CloseableHttpResponse response = null;
InputStream in = null;
String resJson = "";
try {
Map<String, Object> paramMap = JsonSerializeUtil.json2Map(json);
if (null != paramMap) {
Set<String> keys = paramMap.keySet();
for (String key : keys) {
if (StringUtils.isNotBlank(key)) {
Object value = paramMap.get(key);
uri.addParameter(key,
null == value ? "" : value.toString());
}
}
if (logger.isDebugEnabled())
logger.debug("get请求:[{}]", uri.build().toString());
}
HttpGet get = new HttpGet(uri.build());
response = client.execute(get);
try {
if (response.getStatusLine().getStatusCode() == 200) {
HttpEntity eneEntity = response.getEntity();
if (eneEntity != null) {
try {
in = eneEntity.getContent();
resJson = IOUtils.toString(in, defCharset);
} finally {
in.close();
}
}
}
} finally {
response.close();
}
if (logger.isDebugEnabled())
logger.debug("响应报文[{}]", resJson);
} catch (Exception e) {
logger.error("交易报文异常[{}]", e);
throw new RuntimeException(e.getMessage());
} finally {
client.close();
}
return resJson;
}
/**
* 发送带header的HTTP请求post
* @param headers :头部信息
* @param charset :编码
* @param requestJson :请求的json
* @param url : 请求路径
* @return
* @throws Exception
*/
@SuppressWarnings("unchecked")
public String postHeaderForJson(Map<?, ?> Headers, String charset,
String requestJson, String url) throws Exception {
String rst = "";
CloseableHttpResponse response = null;
InputStream in = null;
logger.info("发送报文[{}]", requestJson);
// 发送报文
CloseableHttpClient client = HttpClients.createDefault();
try {
HttpPost post = new HttpPost(url);
if (Headers != null && Headers.get("headers") != null) {
Map<String, String> headers = (Map<String, String>) Headers
.get("headers");
Set<String> keys = headers.keySet();
for (String key : keys) {
if (StringUtils.isNotBlank(key)
&& StringUtils.isNotBlank(headers.get(key))) {
String value = headers.get(key);
logger.info("发送报文请求headers的key:[{}],value:[{}]", key,
value);
post.addHeader(key, value);
}
}
}
StringEntity entity = new StringEntity(requestJson, charset);
post.addHeader("Content-Type","application/json;charset="+charset);
post.setEntity(entity);
try {
response = client.execute(post);
if (response.getStatusLine().getStatusCode() == 200) {
HttpEntity entity2 = response.getEntity();
if (entity2 != null) {
try {
in = entity2.getContent();
rst = IOUtils.toString(in, charset);
} finally {
in.close();
}
}
}
} finally {
response.close();
}
logger.debug("响应报文[{}]", rst);
} catch (Exception e) {
logger.error("接口调用异常[{}]", e);
throw new RuntimeException(e.getMessage());
} finally {
client.close();
}
return rst;
}
/**
* 发送带有File附件的post请求
* @param filekey:文件的键值
* @param file:文件
* @param requestJson:请求json数据
* @param url:请求的url
* @param charset:编码
*/
public CloseableHttpResponse postPartForResponse(String fileKey,File file, String requestJson, String url,String charset){
CloseableHttpResponse response = null;
logger.info("发送报文[{}]", requestJson);
// 发送报文
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost post = new HttpPost(url);
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
FileBody fileBody = new FileBody(file);
try {
//设置map中其他参数
Map<String, Object> paramMap = JsonSerializeUtil.json2Map(requestJson);
if (null != paramMap) {
Set<String> keys = paramMap.keySet();
for (String key : keys) {
if (StringUtils.isNotBlank(key)) {
Object value = paramMap.get(key);
builder.addPart(key, new StringBody(null == value ? "" : value.toString(), ContentType.TEXT_PLAIN));
}
}
}
builder.addPart(fileKey, fileBody);
builder.setContentType(ContentType.MULTIPART_FORM_DATA);
builder.setCharset(Charset.forName(charset));
HttpEntity entity = builder.build();
post.setEntity(entity);
response = httpClient.execute(post);
}catch (Exception e) {
logger.error("交易报文编码异常[{}]", e);
throw new RuntimeException(e.getMessage());
} finally {
post.releaseConnection();
}
return response;
}
}