这是我得到的错误：
14:06:00,355 ERROR [JsonFilter] java.lang.NoSuchMethodException: byte.<init>(java.lang.String)
我有一个带输入文件的基本上传表单：
<form method='post' enctype='multipart/form-data'>
<table>
<input type='file' name='logo'>
</table>
</form>
当我提交时，它调用一个setter servlet，在servlet中有一个extract（）来获取数据：
if (fileUp.getContent("compLogo") != null)
{
record.compLogo = fileUp.getContent("compLogo").getData();
} else
System.out.println("logo was null!");
return record;
但事情是，它甚至在获得extact函数之前抛出了这个错误，我已经在它之前放了很多sysout所以我会知道函数是如何移动的。
15:07:06,915 ERROR [JsonFilter] java.lang.NoSuchMethodException: byte.<init>(java.lang.String)
javax.servlet.ServletException: java.lang.NoSuchMethodException: byte.<init>(java.lang.String)
at com.pinksheets.common.web.req.HttpExtractor.getObject(HttpExtractor.java:160)
at com.pinksheets.common.web.req.HttpExtractor.extract(HttpExtractor.java:88)
at com.pinksheets.common.web.servlet.FetcherServlet.doGet(FetcherServlet.java:52)
at com.pinksheets.common.web.servlet.FetcherServlet.doPost(FetcherServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.pinksheets.common.web.filter.RoleAuthFilter.doFilter(RoleAuthFilter.java:78)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.pinksheets.common.web.filter.UserAuthFilter.doFilter(UserAuthFilter.java:49)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.pinksheets.common.web.filter.JsonFilter.doFilter(JsonFilter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
at org.jboss.web.tomcat.service.session.ClusteredSessionValve.handleRequest(ClusteredSessionValve.java:135)
at org.jboss.web.tomcat.service.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:94)
at org.jboss.web.tomcat.service.session.LockingValve.invoke(LockingValve.java:62)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoSuchMethodException: byte.<init>(java.lang.String)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.getConstructor(Unknown Source)
at com.pinksheets.common.web.req.HttpExtractor.getObject(HttpExtractor.java:142)
... 37 more
这会生成html代码
EditSplashPageDOM.generate = function (value, callback)
{
var elem, output = document.createElement('form');
output.myValue = value;
output.myCallback = callback;
output.method = 'post';
output.enctype = 'multipart/form-data';
output.onsubmit = function(ev) { callback.handleSubmit(value, this); return false; };
output.appendChild(InputField.genHidden ('id', value.id));
output.appendChild(InputField.genHidden ('name', value.name));
var div, p;
output.appendChild(div = document.createElement('div'));
div.appendChild(p = document.createElement('p'));
p.innerHTML = 'The Splash Page list all the information for the current ad. You may update to change the Splash Page.<br /><span class="footnote">*The info shown are data of the latest ad and the proper format.*</span>';
var table = document.createElement('table');
output.appendChild(table);
table.className = 'detail';
this.createRow(table, 'Company Symbol', 'compSymbol', value.compSymbol, 100, 50);
this.createRow(table, 'Company Sec Id', 'secId', value.secId, 100, 50);
this.createFileRow(table, 'Company Logo', 'compLogo', 100, 47); //this is for input the file
row = table.insertRow (table.rows.length);
cell = row.insertCell(0);
cell.colSpan = 2;
cell.className = 'detailAction'
cell.appendChild(elem = InputField.genSubmit('Submit', 'Insert New Ad'));
return output;
}
这是提交功能
EditSplashPageSimple.prototype.handleSubmit = function(value, form)
{
value.compLogo = form.compLogo.value;
value.compPAL = form.compPAL.value;
value.compUrl = form.compUrl.value;
if(value.compLogo == null)
window.alert("comp logo is null");
else
window.alert("logo is " + value.compLogo);
var me = this;
me.caller.setSplashPage(value);
{
handleRequestData : function(status) {
window.alert('Splash Page is successfully updated with new company ' + value.compSymbol);
// me.callback.handleAddition(value);
},
handleRequestError : function(error) {
// Only deal with validation exceptions.
if (!error.isValidationException) {
window.alert('Sorry, there was an error while trying to add the new information. Please double check the data.');
throw error;
}
window.alert(error.message);
var e;
if (error.field && (e = form.elements[error.field])) {
window.alert('error.field error idk');
e.focus();
}
}
});
}
提交itll时调用servlet
System.out.println("now to extract the content of the file and set it to the logo var");
SplashPage record = (new SplashPageLogoAdapter(request)).extract();
extract（）与我发布的相同
答案 0 :(得分：2)
看起来这个com.pinksheets API假定它在某个时刻遇到的类将会有一个带String的构造函数;当它发现有问题的类是byte（即java.lang.Byte.TYPE，它没有这样的构造函数）时，你会得到一个例外。
我想查看com.pinksheets.common.web.req.HttpExtractor.getObject()的来源;那就是你要去看看发生了什么。