无法加载类，缺少依赖关系 [英] Unable to load class, to missing dependency

问题描述

我需要上传文件：

  def newTeam（String nameTeam）{
 render'123'+ nameTeam 
 if（请求instanceof MultipartHttpServletRequest）{
 MultipartHttpServletRequest mpr =（MultipartHttpServletRequest）请求
 CommonsMultipartFile f =（CommonsMultipartFile）mpr.getFile（myFile）; 
 
 
 $ / code $ / pre 
 
我有错误：
 
 
 
 
 2017-04-11 23：22：37.416错误--- [线程-12] 
 grails.boot.GrailsApp：编译错误：启动
失败：类生成期间的一般错误：
 java.lang.NoClassDefFoundError：无法加载类
 org.springframework.web.multipart.commons.CommonsMultipartFile由于
缺少依赖关系Lorg / apache / commons / fileupload / FileItem; 
 
 
 java.lang.RuntimeException：java.lang.NoClassDefFoundError：无法为
加载类
 org.springframework。 web.multipart.commons.CommonsMultipartFile由于
缺少依赖关系Lorg / apache / commons / fileupload / FileItem; 
 more .... 
 
 
 它是修复。但我不知道如何使用它。我必须在我的resources.groovy中写入dsl代码。
解决方案

尝试将以下代码添加到build.gradle中：

 依赖项{
 .... 
编译'commons-fileupload：commons-fileupload：1.3.2'
} 
  




I need to upload file:

def newTeam(String nameTeam){
render '123 ' + nameTeam
if(request instanceof MultipartHttpServletRequest) {
MultipartHttpServletRequest mpr = (MultipartHttpServletRequest)request
CommonsMultipartFile f = (CommonsMultipartFile) mpr.getFile("myFile");
}
} 

i have error:

2017-04-11 23:22:37.416 ERROR --- [ Thread-12] grails.boot.GrailsApp : Compilation Error: startup failed: General error during class generation: java.lang.NoClassDefFoundError: Unable to load class org.springframework.web.multipart.commons.CommonsMultipartFile due to missing dependency Lorg/apache/commons/fileupload/FileItem;

java.lang.RuntimeException: java.lang.NoClassDefFoundError: Unable to load class org.springframework.web.multipart.commons.CommonsMultipartFile due to missing dependency Lorg/apache/commons/fileupload/FileItem; at more....

It is fix. But i do not know how to use it. I have to write the dsl code in my resources.groovy.

解决方案

Try adding the following to build.gradle:

dependencies {
    ....
    compile 'commons-fileupload:commons-fileupload:1.3.2'
}

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