接收图片的jsp前端页面
<form method="post" action="PicUpServlet" enctype="multipart/form-data">
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
<legend>添加文章</legend>
</fieldset>
<div class="layui-form-item layui-form-text" >
<div class="layui-input-block" style="margin-left: 0px;">
<textarea placeholder="请输入内容" class="layui-textarea"></textarea>
</div>
</div>
<!-- <input type="text" name="content" /><br/> -->
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;" >
<legend>添加图片</legend>
</fieldset>
<div style="margin-left: 8px;">
<input type="file" name="uploadFile"/>
</div>
<br/><br/>
<div style="margin-left: 8px;">
<input type="submit" value="上传" />
</div>
</form>
文件保存
package com.gugu.servlet;
import java.io.File;
import java.io.IOException;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.gugu.dao.WisUploadDao;
import com.gugu.pojo.GgNote;
import com.gugu.util.Upload;
public class PicUpServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private static final String UPLOAD_DIRECTORY = "C:\\MyBlog-master\\WebContent\\images";
public PicUpServlet() {
super();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.getWriter().append("Served at: ").append(request.getContextPath());
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
String path = UPLOAD_DIRECTORY+"//images//"+File.separator ;
Map<String, String> map = Upload.upload(request, 1024 * 1024 * 10, path);
String newFileName ="images"+File.separator+ map.get("newFileName");
GgNote note = new GgNote();
note.setNoteContent(map.get("content"));
note.setNotePhoto(newFileName);
System.out.println(newFileName);
System.out.println(map.get("content"));
WisUploadDao add = new WisUploadDao();
add.addwis(note);
response.sendRedirect("page/whisper/manage.jsp");
}
}
判断文字还是图片
package com.gugu.util;
import java.io.File;
import java.io.IOException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import com.oreilly.servlet.multipart.FilePart;
import com.oreilly.servlet.multipart.MultipartParser;
import com.oreilly.servlet.multipart.ParamPart;
import com.oreilly.servlet.multipart.Part;
public class Upload {
public static Map<String, String> upload(HttpServletRequest request,int maxSize, String path) {
//以map形式保存数据 key对应保存的是获取界面上的name名称 value保存的是获取界面上的name对应的值
Map<String, String> map = new HashMap<String, String>();
Part part = null;
try {
MultipartParser mrequest = new MultipartParser(request, maxSize);
mrequest.setEncoding("utf-8");
//遍历所有的part组
while ((part = mrequest.readNextPart()) != null) {
if (part.isFile()) { //判断是否是文件
FilePart filepart = (FilePart) part;//转化成文件组
String fileName = filepart.getFileName();//得到文件名
if (fileName != null && fileName.length() > 0) {
// 取得扩展名
String fileExtName = fileName.substring(
fileName.lastIndexOf(".") + 1).toLowerCase();
// 只上传图片 //判断图片上传的格式是否符合 后缀名是否有效
if (fileExtName.equalsIgnoreCase("jpeg")
|| fileExtName.equalsIgnoreCase("png")
|| fileExtName.equalsIgnoreCase("jpg")
|| fileExtName.equalsIgnoreCase("gif")
|| fileExtName.equalsIgnoreCase("ico")
|| fileExtName.equalsIgnoreCase("bmp")
|| fileExtName.equalsIgnoreCase("flv")
|| fileExtName.equalsIgnoreCase("mp4")
|| fileExtName.equalsIgnoreCase("mp3")) {
/*String newFileName = new Date().getTime() + "."+ fileExtName;//重新改文件名 文件名+扩展名 */
String newFileName =new Date().getTime() +fileName;//不改图片名字
String newPath = path + "/" + newFileName; //文件处理文件上传的路径
File newFile = new File(newPath);
filepart.writeTo(newFile); //将文件真正写入到对应的文件夹中
//filepart.getName() 得到 request 要接收的参数的名字
map.put("newFileName", newFileName);
map.put(filepart.getName(), newFileName);//把文件信息保存到map中
map.put("newFile", newFile.toString());
} else {
map.put("geshi", "geshi");
continue;
}// 说明上传的不是图片
} else {
map.put("yes","yes");
continue; // 说明没有选择上传图片
}
} else if (part.isParam()) { //判断是否是参数
ParamPart paramPart = (ParamPart) part;
map.put(paramPart.getName(), paramPart.getStringValue());
}
}
} catch (IOException e) {
e.printStackTrace();
}
return map;
}
}
上传到数据库的文字内容为null 图片保存路劲也为null请问是那部分出错了
控制台报错
java.io.FileNotFoundException: C:\Users\12874\Desktop\毕业设计\MyBlog-master\WebContent\images\images\1572883296157tony_tony_chopper-006.jpg (系统找不到指定的路径。)
at java.io.FileOutputStream.open0(Native Method)
at java.io.FileOutputStream.open(Unknown Source)
at java.io.FileOutputStream.<init>(Unknown Source)
at java.io.FileOutputStream.<init>(Unknown Source)
at com.oreilly.servlet.multipart.FilePart.writeTo(FilePart.java:166)
at com.gugu.util.Upload.upload(Upload.java:50)
at com.gugu.servlet.PicUpServlet.doPost(PicUpServlet.java:40)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1579)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
images\null
null