Oracle发送http请求中文乱码问题

在日常开发中，可以需要使用Oracle存储过程进行http请求发送，有时会遇到，客户端接收的xml中文乱码，还有报文格式不完整，以及接收返回报文中文乱码问题，下面就为大家举例，并提供解决方法。

发送例子：

一、Oracle存储过程部分：

1、调用发送方法的存储过程

create or replace procedure CallHttpRequest(
pi_URL in varchar2, --发送的Http URL
po_ReMsg out varchar2 --返回信息
) is

obj_xmldoc sys.xmltype; --响应报文xml对象
ro_xmlContent varchar2(10000); --请求报文

begin
--要发送的报文
ro_xmlContent:='<?xml version="1.0" encoding="GBK"?>
<TXLife>
<TXLifeRequest>
<TransRefGUID>0066667626</TransRefGUID>
<TransType tc="WLSCBS_BL_BK_0002">测试</TransType>
<TransExeDate>2018-12-03</TransExeDate>
<TransExeTime>10:12:30</TransExeTime>
<Billcard>
<CardType tc="166">单证类型</CardType>
<BackType tc="14">单证回销类型值</BackType>
</Billcard>
</TXLifeRequest>
</TXLife>';

--调用发送方法
SqlHttpRequest(pi_URL, ro_xmlContent, po_ReMsg, obj_xmldoc);

end CallHttpRequest;

2、具体的发送存储过程

create or replace procedure SqlHttpRequest(
pi_URL in varchar2, --发送的Http URL
pi_Content in varchar2, --发送的报文内容
po_ReMsg out varchar2, --错误内容
po_xmltype out xmltype --响应报文内容
)
as
obj_http_req UTL_HTTP.REQ; --http请求对象
obj_http_resp UTL_HTTP.RESP; --http响应对象
v_req_clob varchar2(32767); --请求报文
v_resp_clob clob; --响应报文
v_buffer_text varchar2(32767); --缓存
TIMEOUT INTEGER DEFAULT 3600;

begin

v_req_clob:=pi_Content;

-- 初始化晌应CLOB.
DBMS_LOB.createtemporary(v_resp_clob, FALSE);

-- 初始化HTTP请求参数.
UTL_HTTP.SET_TRANSFER_TIMEOUT(TIMEOUT);
obj_http_req := UTL_HTTP.BEGIN_REQUEST (pi_URL, 'POST');
UTL_HTTP.SET_HEADER (obj_http_req,'Content-Type','text/xml;chartset=utf-8');
v_req_clob:=utl_url.escape(v_req_clob,true,'UTF8');--进行url编码
UTL_HTTP.SET_HEADER (obj_http_req,'Content-Length',lengthb(v_req_clob))；
UTL_HTTP.SET_BODY_CHARSET(obj_http_req,'UTF-8');
--发送HTTP请求
UTL_HTTP.WRITE_TEXT (obj_http_req,v_req_clob);
--接收响应
obj_http_resp := UTL_HTTP.GET_RESPONSE(obj_http_req);

BEGIN
LOOP
UTL_HTTP.READ_TEXT(obj_http_resp, v_buffer_text, 32767);
DBMS_LOB.WRITEAPPEND(v_resp_clob, length(v_buffer_text), v_buffer_text);
END LOOP;
--关闭HTTP连接
UTL_HTTP.END_RESPONSE(obj_http_resp);
EXCEPTION
WHEN UTL_HTTP.REQUEST_FAILED THEN
UTL_HTTP.END_RESPONSE(obj_http_resp);
DBMS_LOB.freetemporary(v_resp_clob);
po_ReMsg := 'HTTP请求失败：' || 'DBS' || to_char(SQLCODE) || ':' || substr(SQLERRM,1,128);
WHEN UTL_HTTP.TRANSFER_TIMEOUT THEN
UTL_HTTP.END_RESPONSE(obj_http_resp);
DBMS_LOB.freetemporary(v_resp_clob);
po_ReMsg := 'HTTP请求超时失败：' || 'DBS' || to_char(SQLCODE) || ':' || substr(SQLERRM,1,128);
WHEN UTL_HTTP.END_OF_BODY THEN
UTL_HTTP.END_RESPONSE(obj_http_resp);
WHEN OTHERS THEN
UTL_HTTP.END_RESPONSE(obj_http_resp);
DBMS_LOB.freetemporary(v_resp_clob);
po_ReMsg := 'HTTP请求错误：' || 'DBS' || to_char(SQLCODE) || ':' || substr(SQLERRM,1,128);
END;

dbms_output.put_line('返回-------------->'||v_resp_clob);
--创建XMLTYPE对象
po_xmltype:=sys.XMLTYPE(v_resp_clob);
--释放clob
DBMS_LOB.freetemporary(v_resp_clob);
po_ReMsg := '请求成功！';

EXCEPTION
WHEN OTHERS THEN
UTL_HTTP.END_RESPONSE(obj_http_resp);
DBMS_LOB.freetemporary(v_resp_clob);
po_ReMsg := 'XML内容错误：' || 'DBS' || to_char(SQLCODE) || ':' || substr(SQLERRM,1,128);

end SqlHttpRequest;

二、Java部分

1、一个接收oracle存储过程发送请求的servlet

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.InterruptedIOException;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;

public class OracleHttpResponse extends HttpServlet {

   /**
   *
   */
   private static final long serialVersionUID = -6824462722279265976L;

   /**
   * Destruction of the servlet. <br>
   */
   public void destroy() {
       super.destroy(); // Just puts "destroy" string in log
       // Put your code here
   }

public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {

doPost(request, response);
}

   public void doPost(HttpServletRequest request, HttpServletResponse response)
           throws ServletException, IOException {

       // 设置接收的内容编码
       request.setCharacterEncoding("utf-8");
       // 接收请求的输入流数据
       String sendMessage = null;

try {
InputStream in = request.getInputStream();

           InputStreamReader isr = new InputStreamReader(in);
           BufferedReader br = new BufferedReader(isr);
           StringBuffer buffer = new StringBuffer();
           String line = "";
           while ((line = br.readLine()) != null) {
               buffer.append(line);
           }

sendMessage = buffer.toString();

       } catch (InterruptedIOException e) {
           e.printStackTrace();
       } catch (IOException ioe) {
           ioe.printStackTrace();
       } catch (NullPointerException npe) {
           npe.printStackTrace();
       }
       System.out.println("oracle过来的xml数据：" + sendMessage);

       OutputStream url_out = null;
       String xmlData = CreateResponseData();

       response.setContentType("text/xml;charset=utf-8");
       response.reset();
       url_out = response.getOutputStream();
       url_out.write(xmlData.getBytes("utf-8"), 0, xmlData.getBytes("utf-8").length);
       url_out.flush();
       url_out.close();

}

   private String CreateResponseData() {
       Document document = DocumentHelper.createDocument();
       // 增加根节点
       Element TXLife = document.addElement("TXLife");

       Element TXLifeResponse = TXLife.addElement("TXLifeResponse");
       Element TransRefGUID = TXLifeResponse.addElement("TransRefGUID");
       TransRefGUID.setText("1000000000");

       Element TransType = TXLifeResponse.addElement("TransType");
       TransType.setText("测试同步交易");
       TransType.addAttribute("tc", "WLSCBS_QY_BL_0001");

SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateStr = dateFormat.format(new Date());

Element TransExeDate = TXLifeResponse.addElement("TransExeDate");
TransExeDate.setText(dateStr.split(" ")[0]);

Element TransExeTime = TXLifeResponse.addElement("TransExeTime");
TransExeTime.setText(dateStr.split(" ")[1]);

       Element TransResult = TXLifeResponse.addElement("TransResult");
       Element ResultCode = TransResult.addElement("ResultCode");
       ResultCode.setText("测试成功");
       ResultCode.addAttribute("tc", "1");

       return document.asXML();

   }

   public void init() throws ServletException {
       // Put your code here
   }

三、测试

1、右键存储过程callhttprequest，选择Test，进入测试界面，输入前面我定义的servlet的访问路径

2、查看servlet接收的报文

首先是乱码：

oracle过来的xml数据：<?xml version="1.0" encoding="GBK"?> <TXLife> <TXLifeRequest> <TransRefGUID>0066667626</TransRefGUID> <TransType tc="WLSCBS_BL_BK_0002">娴嬭瘯</TransType> <TransExeDate>2018-12-03</TransExeDate> <TransExeTime>10:12:30</TransExeTime> <Billcard> <CardType tc="166">鍗曡瘉绫诲瀷</CardType> <BackType tc="14">鍗曡瘉鍥為攢绫诲瀷鍊?</BackType> </Billcard> </TXLifeReque
出现这个问题需要改一下servlet的接收方法，改一句代码即可

将 InputStreamReader isr = new InputStreamReader(in);

改成InputStreamReader isr = new InputStreamReader(in, "utf-8");

再次测试，中文不乱码了，但报文不完整

oracle过来的xml数据：<?xml version="1.0" encoding="GBK"?> <TXLife> <TXLifeRequest> <TransRefGUID>0066667626</TransRefGUID> <TransType tc="WLSCBS_BL_BK_0002">测试</TransType> <TransExeDate>2018-12-03</TransExeDate> <TransExeTime>10:12:30</TransExeTime> <Billcard> <CardType tc="166">单证类型</CardType> <BackType tc="14">单证回销类型值</BackType> </Billcard> </TXLifeReque