javascript – 使用AngularJS和SpringMVC的多部分文件上传
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我是angularJS的新手并尝试使用angular JS和Spring MVC上传文件,但是无法获得所需的解决方案并最终导致JS Controller中的异常.
下面是代码,请看看,请帮帮我.谢谢
applicationContext.xml中
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="10000000" /> <!-- setting maximum upload size -->
</bean>
JSP：
<div data-ng-controller='QuestionController'>
<form name="createChapForm" data-ng-submit="submitQue();" enctype="multipart/form-data" class="form-horizontal">
<div class="form-group">
<label class="control-label col-sm-3">Select Class * :</label>
<div class="col-sm-8">
<div class="col-sm-6">
<select data-ng-model='class_id' data-ng-init='getClasses();' data-ng-change='getSubjectsClasswise(class_id);' class="form-control" required>
<option value="">--SELECT--</option>
<option data-ng-repeat='c in clss' value="{{ c.class_id}}">{{ c.class_name}}</option>
</select>
</div>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-3">Select Subject * :</label>
<div class="col-sm-8">
<div class="col-sm-6">
<select data-ng-model='question.sid' data-ng-change='doGetChapters(question.sid);' class="form-control" required>
<option value="">--SELECT--</option>
<option data-ng-repeat='s in subsss' value="{{ s.sid}}">{{ s.subject_name}}</option>
</select>
</div>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-3">Select Chapter :</label>
<div class="col-sm-8">
<div class="col-sm-6">
<select data-ng-model='question.chap_id' class="form-control" >
<option value="">ALL</option>
<option data-ng-repeat='c in chapters' value="{{ c.chap_id}}">{{ c.chap_name}}</option>
</select>
</div>
</div>
</div>
<div class="form-group">
<div class="control-label col-sm-2" >Question :</div>
<div class="col-sm-10 padding_0">
<textarea data-ng-model='question.question_text' rows="5" class="form-control " > </textarea>
<div class="right">
<div class="fileUpload btn btn-primary1 btn-sm">
<input type="file" data-ng-model="file" name="file" id="file" id="q_id" class="upload" />
</div>
</div>
</div>
</div>
</form>
</div>
AngularJS控制器：
$scope.submitQue = function() {
console.log('file is ' ); console.dir(file.files[0]);
var URL =appURL+'/adm/doAddQuestion.do';
var fd = new FormData();
fd.append('file', file.files[0]);
fd.append('questionBean', angular.toJson($scope.question, true));
$http.post(URL, fd, {
transformRequest : angular.identity,
headers : {
'Content-Type' : undefined
}
}).success(function() {
console.log('success');
}).error(function() {
console.log('error');
});
}
Java控制器：
@RequestMapping(value = "/doAddQuestion.do", method = RequestMethod.POST, consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public @ResponseBody String saveUserDataAndFile(@RequestParam(value = "file") MultipartFile file, @RequestBody QuestionBean questionBean) {
System.out.println("output: "+questionBean.getQuestion_text());
// Im Still wotking on it
return "";
}
例外：
Mar 08, 2017 7:46:46 PM org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver handleHttpMessageNotReadable
WARNING: Failed to read HTTP message: org.springframework.http.converter.HttpMessageNotReadableException: Could not read document: Unexpected character ('-' (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value
at [Source: java.io.PushbackInputStream@bc03e1; line: 1, column: 3]; nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('-' (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value
at [Source: java.io.PushbackInputStream@bc03e1; line: 1, column: 3]
Mar 08, 2017 7:46:46 PM org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver logException
WARNING: Handler execution resulted in exception: Could not read document: Unexpected character ('-' (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value
at [Source: java.io.PushbackInputStream@bc03e1; line: 1, column: 3]; nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('-' (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value
at [Source: java.io.PushbackInputStream@bc03e1; line: 1, column: 3]
解决方法:
添加这些.js文件,其中添加了angular.js文件angular-file-upload.js,angular-file-upload-shim.js,ng-file-upload.js,ng-file-upload-shim.js
您可以从此链接下载Angular File For Upload.
然后在angular.module中添加ngFileUpload,’angularFileUpload’,见下面一行.
angular.module('formSubmit', [ 'ngFileUpload',
'angularFileUpload', 'ui.router' ]);
然后像这样在角度控制器中添加$upload.
app.controller('FormSubmitController', function($scope, $http, $upload)
在角度代码中使用$upload.upload而不是$http.post.
$upload.upload({
url : 'doAddQuestion.do',
file : yourFile,
data : $scope.questionBean,
method : 'POST'
});
更换弹簧控制器.
@RequestMapping(value = "/doAddQuestion.do", method = RequestMethod.POST, headers = ("content-type=multipart/*"))
public @ResponseBody String saveUserDataAndFile(@RequestParam("file") MultipartFile file, QuestionBean questionBean) {
System.out.println("output: "+questionBean.getQuestion_text());
// Im Still wotking on it
return "";
}
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