通过java.net.URLConnection发送HTTP请求的方法,遇到返回的是html/text格式，我想返回JSON，怎么办，急求

qq_28803955 2016-06-30 10:21:46

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;

public class gerenrz {

public static void main(String[] args) throws Exception {

System.out.println(doPost("HA", "49D762812B8E49437FD3443B8F0CE4BC", 0, "7150020160010634", "0001", "20160601", "20160622", 1, 20));

}

public static String doPost(String OrigDomain, String Token,Integer RequestType,String CardNo,String AcctType,String BeginDate,String EndDate,Integer PageNum,Integer PageSize) throws Exception {

String parameterData = "{\"OrigDomain\":\"" + OrigDomain + "\",\"Token\":\""+Token+"\",\"RequestType\":\""+ RequestType+"\",\"CardNo\":\"" + CardNo+"\",\"AcctType\":\"" +AcctType+"\",\"BeginDate\":\"" +BeginDate+"\",\"EndDate\":\""+EndDate+"\",\"PageNum\":\""+PageNum+"\",\"PageSize\":\""+PageSize+"\"}";

URL localURL = new URL("http://10.0.4.107:5500/v1/account/AccBookQuery");
URLConnection connection = localURL.openConnection();

HttpURLConnection httpurlconnection = (HttpURLConnection)connection;
httpurlconnection.setDoOutput(true);
httpurlconnection.setRequestMethod("POST");
httpurlconnection.setRequestProperty("Accept-Charset", "utf-8");
httpurlconnection.setRequestProperty("content-type", "application/x-www-form-urlencoded;charset=UTF-8");

OutputStream outputStream = null;
OutputStreamWriter outputStreamWriter = null;
InputStream inputStream = null;
InputStreamReader inputStreamReader = null;
BufferedReader reader = null;
StringBuffer resultBuffer = new StringBuffer();
String tempLine = null;

try {
outputStream = httpurlconnection.getOutputStream();
outputStreamWriter = new OutputStreamWriter(outputStream);

outputStreamWriter.write(parameterData.toString());
outputStreamWriter.flush();

if (httpurlconnection.getResponseCode() >= 300) {
throw new Exception("HTTP Request is not success, Response code is " + httpurlconnection.getResponseCode());
}

inputStream = httpurlconnection.getInputStream();
inputStreamReader = new InputStreamReader(inputStream);
reader = new BufferedReader(inputStreamReader);

while ((tempLine = reader.readLine()) != null) {
StringBuffer aaa= resultBuffer.append(tempLine);

}

} finally {

if (outputStreamWriter != null) {
outputStreamWriter.close();
}

if (outputStream != null) {
outputStream.close();
}

if (reader != null) {
reader.close();
}

if (inputStreamReader != null) {
inputStreamReader.close();
}

if (inputStream != null) {
inputStream.close();
}

}

return resultBuffer.toString();
}

}

自己试试之后遇到一个问题
当 httpurlconnection.setRequestProperty("content-type", "application/json"); 返回的是html/text格式的东西
当 httpurlconnection.setRequestProperty("content-type", "application/x-www-form-urlencoded;charset=UTF-8"); 就会报应用域代码错误
百度了很久无法解决，求大神！！！！

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qq_28803955 2016-06-30

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引用 6 楼 autfish 的回复:

URL localURL = new URL("http://10.0.4.107:5500/v1/account/AccBookQuery"); 改成 URL localURL = new URL("http://10.0.4.107:5500/v1/account/AccBookQuery?format=json"); 试试

谢谢

大雨将至 2016-06-30

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URL localURL = new URL("http://10.0.4.107:5500/v1/account/AccBookQuery"); 改成 URL localURL = new URL("http://10.0.4.107:5500/v1/account/AccBookQuery?format=json"); 试试

qq_28803955 2016-06-30

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[2016-06-30 11:02:01][Info]HttpMethod:POST AbsoluteUri:http://10.0.4.107:5500/v1/account/AccBookQuery PathInfo:/account/AccBookQuery IpAddress:10.0.4.159 ForwardedFor: RequestBody:{"OrigDomain":"HA","Token":"49D762812B8E49437FD3443B8F0CE4BC","RequestType":"0","CardNo":"7150020160010634","AcctType":"0001","BeginDate":"20160601","EndDate":"20160622","PageNum":"1","PageSize":"20"} ResponseDto:{"CardNo":"7150020160010634","TradeCount":0,"TradeDetail":[],"ResponseStatus":{"ErrorCode":"OK","Errors":[]},"TradeID":"2016063000000720"} ErrorResponse: RequestDuration:2.7148762 服务器端的 log 我感觉好像是我代码错了，但是找不到哪里错了。。还是怎么回事？

qq_28803955 2016-06-30

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引用 3 楼 autfish 的回复:

这就绝对是服务器端的问题了，没有正常输出或者是你调用的接口不对，要协作解决了

是我的问题吗？是不是我代码写错了？

大雨将至 2016-06-30

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这就绝对是服务器端的问题了，没有正常输出或者是你调用的接口不对，要协作解决了

qq_28803955 2016-06-30

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引用 1 楼 autfish 的回复:

这还得看服务端是否支持不过这也没什么影响吧，你收到文本格式的内容后，再序列化回json对象就行了

<!doctype html><html lang="en-us"><head><title>CustomerAccBookQuery Snapshot of 2016-6-30 2:42:55</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><style type="text/css">BODY, H1, H2, H3, H4, H5, H6, DL, DT, DD { margin: 0; padding: 0; color: #444; font: 13px/15px Arial, Verdana, Helvetica;}H1 { text-align: center; font: 24px Helvetica, Verdana, Arial; padding: 20px 0 10px 0; background: #FBFBFB; border-bottom: solid 1px #fff;}#lnks { border-top: solid 1px #dfdfdf; border-bottom: solid 1px #dfdfdf; margin: 0 0 10px 0; padding: 5px; background: #f1f1f1; line-height: 20px; text-align: center;}#lnks B { padding: 0 3px;}#body { padding: 20px;}H1 B { font-weight: normal; color: #069;}H1 A { color: #0E8F13; text-decoration: underline;}H1 I { font-style: normal; color: #0E8F13;}A { color: #00C; text-decoration: none;}A:hover { text-decoration: underline;}.ib { position: relative; display: -moz-inline-box; display: inline-block;}* html .ib { display: inline;}*:first-child + html .ib { display: inline;}TABLE { border-collapse:collapse; border: solid 1px #ccc; clear: left;}TH { text-align: left; padding: 4px 8px; text-shadow: #fff 1px 1px -1px; background: #f1f1f1; white-space:nowrap; cursor:pointer; font-weight: bold;}TH, TD, TD DT, TD DD { font-size: 13px; font-family: Arial;}TD { padding: 8px 8px 0 8px; vertical-align: top;}DL { clear: left;}DT { margin: 10px 0 5px 0; font: bold 18px Helvetica, Verdana, Arial; min-width: 200px; overflow: hidden; clear: left; float: left; display:block; white-space:nowrap;}DD { margin: 5px 10px; font: 18px Arial; padding: 2px; display: block; float: left;}DL DL DT { font: bold 16px Arial;}DL DL DD { font: 16px Arial;}HR { display:none;}TD DL HR{ display:block; padding: 0; clear: left; border: none;}TD DL{ padding: 4px; margin: 0; height:100%; max-width: 700px;}DL TD DL DT { padding: 2px; margin: 0 10px 0 0; font-weight: bold; font-size: 13px; width: 120px; overflow: hidden; clear: left; float: left; display:block;}DL TD DL DD { margin: 0; padding: 2px; font-size: 13px; display: block; float: left;}TBODY>TR:last-child>TD { padding: 8px;}THEAD{ -webkit-user-select:none; -moz-user-select:none;}.desc, .asc { background-color: #FAFAD2;}.desc { background-color: #D4EDC9;}TH B { display:block; float:right; margin: 0 0 0 5px; width: 0; height: 0; border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 5px solid #ccc; border-bottom: none;}.asc B { border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 5px solid #333; border-bottom: none;}.desc B { border-left: 5px solid transparent; border-right: 5px solid transparent; border-bottom: 5px solid #333; border-top: none;}#show-json { display:none;}#mask { display: none; position:absolute; top:0; left:0; height:100%; width:100%; background: rgba(0,0,0,0.7); z-index: 1;}.show-json #show-json, .show-json #mask { display:block;}#show-json { position: absolute; left: 50%; margin: 0 0 0 -350px; border: solid 4px #ccc; padding: 10px 20px; background: #fff; text-align: center; float: left; z-index: 2;}H3 { font-size: 18px; margin: 0 0 10px 0;}#show-json TEXTAREA { width: 750px; height: 400px; overflow:visible; display: block;}#show-json BUTTON { margin: 10px 0 0 0; padding: 5px 10px; clear: left;}</style></head><body><div id="mask"></div><h1>Snapshot of <i>CustomerAccBookQuery</i> generated by <a href="https://servicestack.net">ServiceStack</a> on <b>2016-6-30 2:42:55</b></h1><div id="lnks"> <a href="javascript:showJson()">view json datasource</a> <b>from original url:</b> <a href="http://10.0.4.107:5500/v1/account/AccBookQuery?">http://10.0.4.107:5500/v1/account/AccBookQuery?</a> <b>in other formats:</b> <a href="http://10.0.4.107:5500/v1/account/AccBookQuery?format=json">json</a> <a href="http://10.0.4.107:5500/v1/account/AccBookQuery?format=xml">xml</a> <a href="http://10.0.4.107:5500/v1/account/AccBookQuery?format=csv">csv</a> <a href="http://10.0.4.107:5500/v1/account/AccBookQuery?format=jsv">jsv</a></div><div id="body"> <div id="show-json"> <h3>This reports json data source</h3> <textarea></textarea> <button onclick="doc.body.className=null;">Close Window</button> </div> <div id="content"></div></div><script> !window.JSON && document.write(unescape('%3Cscript src="http://ajax.cdnjs.com/ajax/libs/json2/20110223/json2.js"%3E%3C/script%3E'))</script><script type="text/javascript">// <![CDATA[var doc = document, win = window, $ = function(id) { return doc.getElementById(id); }, $$ = function(sel) { return doc.getElementsByTagName(sel); }, $each = function(fn) { for (var i=0,len=this.length; i<len; i++) fn(i, this[i], this); };$.each = function(arr, fn) { $each.call(arr, fn); };var splitCase = function (t) { return typeof t != 'string' ? t : titleCase(t.replace(/([a-z0-9])([A-Z])/g, '$1 $2')); }, titleCase = function (s) { return s.replace(/\w\S*/g, function (t) { return t.charAt(0).toUpperCase() + t.substr(1).toLowerCase(); }); }, uniqueKeys = function(m){ var h={}; for (var i=0,len=m.length; i<len; i++) for (var k in m[i]) if (show(k)) h[k] = k; return h; }, keys = function(o){ var a=[]; for (var k in o) if (show(k)) a.push(k); return a; }var tbls = [];function val(m) { if (m == null) return ''; if (typeof m == 'number') return num(m); if (typeof m == 'string') return str(m); if (typeof m == 'boolean') return m ? 'true' : 'false'; return m.length ? arr(m) : obj(m);}function num(m) { return m; }var sdfmt = location.hash.indexOf('show=') >=0 && location.hash.indexOf('fulldates') >= 0 ? dmft : dmfthm;function str(m){ return m.substr(0,6) == '/Date(' ? sdfmt(date(m)) : m; }function sfmt(s) { return humanize ? splitCase(s) : s; }function date(s) { return new Date(parseFloat(/Date$([^)]+)$/.exec(s)[1])); }function pad(d) { return d < 10 ? '0'+d : d; }function dmft(d) { return d.getFullYear() + '/' + pad(d.getMonth() + 1) + '/' + pad(d.getDate()); }function dmfthm(d) { return d.getFullYear() + '/' + pad(d.getMonth() + 1) + '/' + pad(d.getDate()) + ' ' + pad(d.getHours()) + ":" + pad(d.getMinutes()); }function show(k) { return typeof k != 'string' || k.substr(0,2) != '__'; }function obj(m) { var sb = '<dl>'; for (var k in m) if (show(k)) sb += '<dt class="ib">' + sfmt(k) + '</dt><dd>' + val(m[k]) + '</dd>'; sb += '</dl>'; return sb;}function arr(m) { if (typeof m[0] == 'string' || typeof m[0] == 'number') return m.join(', '); var id=tbls.length, h=uniqueKeys(m); var sb = '<table id="tbl-' + id + '"><caption></caption><thead><tr>'; tbls.push(m); var i=0; for (var k in h) sb += '<th id="h-' + id + '-' + (i++) + '"><b></b>' + sfmt(k) + '</th>'; sb += '</tr></thead><tbody>' + makeRows(h,m) + '</tbody></table>'; return sb;}function makeRows(h,m) { var sb = ''; for (var r=0,len=m.length; r<len; r++) { sb += '<tr>'; var row = m[r]; for (var k in h) if (show(k)) sb += '<td>' + val(row[k]) + '</td>'; sb += '</tr>'; } return sb;}var model = {"CardNo":"7150020160010634","TradeCount":0,"TradeDetail":[],"ResponseStatus":{"ErrorCode":"OK","Errors":[]},"TradeID":"2016063000000702"}, txt = $$('TEXTAREA')[0], humanize = true && location.hash.indexOf('dehumanize') == -1, isIE = /msie/i.test(navigator.userAgent) && !/opera/i.test(navigator.userAgent);$("content").innerHTML = val(model); txt.innerHTML=JSON.stringify(model);function showJson(){ doc.body.className='show-json'; txt.select(); txt.focus(); }doc.onclick = function(e) { e = e || window.event, el = e.target || e.srcElement, cls = el.className; if (el.tagName == 'B') el = el.parentNode; if (el.tagName != 'TH') return; el.className = cls == 'asc' ? 'desc' : (cls == 'desc' ? null : 'asc'); $.each($$('TH'), function(i,th){ if (th == el) return; th.className = null; }); clearSel(); var ids=el.id.split('-'), tId=ids[1], cId=ids[2]; if (!tbls[tId]) return; var tbl=tbls[tId].slice(0), h=uniqueKeys(tbl), col=keys(h)[cId], tbody=el.parentNode.parentNode.nextSibling; if (!el.className){ setTableBody(tbody, makeRows(h,tbls[tId])); return; } var d=el.className=='asc'?1:-1; tbl.sort(function(a,b){ return cmp(a[col],b[col]) * d; }); setTableBody(tbody, makeRows(h,tbl));}function setTableBody(tbody, html) { if (!isIE) { tbody.innerHTML = html; return; } var temp = tbody.ownerDocument.createElement('div'); temp.innerHTML = '<table>' + html + '</table>'; tbody.parentNode.replaceChild(temp.firstChild.firstChild, tbody);}function clearSel() { if (doc.selection && doc.selection.empty) doc.selection.empty(); else if(win.getSelection) { var sel=win.getSelection(); if (sel && sel.removeAllRanges) sel.removeAllRanges(); }}function cmp(v1, v2){ var f1, f2, f1=parseFloat(v1), f2=parseFloat(v2); if (!isNaN(f1) && !isNaN(f2)) v1=f1, v2=f2; if (typeof v1 == 'string' && v1.substr(0,6) == '/Date(') v1=date(v1), v2=date(v2); if (v1 == v2) return 0; return v1 > v2 ? 1 : -1;}// ]]></script></body></html> 大概冒出这些玩意。。。完全看不懂请问这些可以序列化json对象吗？

大雨将至 2016-06-30