javaWeb服务器中doPost的代码
需要导入jspsmartupload.jar包，导入jspsmartupload.jar需要将其放在WebContent/WEB_INF/lib目录下，放在该目录下之后刷新右键该包选择Build Path -> Add to Buid Path。
SmartUpload的一些用法如下，具体的用法参考：http://www.voidcn.com/blog/u011990285/article/p-3423327.html
/**
* SmartUpload 的用法
*/
//初始化
SmartUpload mySmartUpload = new SmartUpload();
mySmartUpload.initialize(getServletConfig(),request,response);
//设置每个上传文件的最大长度(可选)
mySmartUpload.setMaxFileSize(1024*1024);
//限制总上传数据的长度(可选)
mySmartUpload.setTotalMaxFileSize(1024*1024*10);
//允许上传的文件（通过扩展名限制），仅允许上传doc，txt文件
mySmartUpload.setAllowedFilesList("doc,txt");
//设置禁止上传的文件（通过扩展名限制），禁止ext，bat(可选)
try {
mySmartUpload.setDeniedFilesList("ext,bat");
} catch (SQLException e) {
e.printStackTrace();
}
//准备上传
try {
mySmartUpload.upload();
} catch (SmartUploadException e) {
//向客户端返回错误信息
response.getWriter().print(e);
}
//读取除了文件之外的数据
Request otherRequest = mySmartUpload.getRequest();
//如果在客户端中传输了中文，有可能会出现中文乱码，因此会使用了URL编码，那么我们就需要对接收的参数进行URL解码,否则就不需要
String userName = URLDecoder.decode(otherRequest.getParameter("userName"),"UTF-8");
String userId = otherRequest.getParameter("userId");
String savePath = "c://";
//保存文件
for (int i = 0; i < mySmartUpload.getFiles().getCount(); i++) {
//读取文件
com.jspsmart.upload.File file = mySmartUpload.getFiles().getFile(i);
if (file.isMissing()) continue;
try {
file.saveAs(savePath + file.getFileName());
} catch (SmartUploadException e) {
//向客户端返回错误信息
response.getWriter().println(e);
}
}web服务器以及配置
UploadImage.servlet
/**
* Servlet implementation class UploadImage
*/
@WebServlet("/UploadImage")
public class UploadImage extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public UploadImage() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html,charset=UTF-8");
//保存在本地的路径
String saveFilePath = "C://";
//保存在本地的文件名
String fileName;
try {
SmartUpload smartUpload = new SmartUpload();
smartUpload.initialize(this.getServletConfig(), request, response);
smartUpload.upload();
//获取其他的数据
Request otherReq = smartUpload.getRequest();
//获取从客户端传输过来的用户名,在客户端中对参数进行参数URL编码了，所以服务器这里要进行URL解码
String userName= URLDecoder.decode(otherReq.getParameter("userName"),"utf-8");
//获取从客户端传输过来的用户ID
String userId = otherReq.getParameter("userId");
//获取上传的文件，因为知道在客户端一次就上传一个文件，所以我们就直接取第一个文件
com.jspsmart.upload.File smartFile = smartUpload.getFiles().getFile(0);
//判断文件是否丢失
if (!smartFile.isMissing()) {
//获得文件名
fileName = smartFile.getFileName();
saveFilePath += fileName;
//另保存至本地
smartFile.saveAs(saveFilePath, smartUpload.SAVE_PHYSICAL);
//给客户端返回确认信息
String responseStr = "ok:" + saveFilePath + "，userName:"+userName +", userId:" + userId;
OutputStream out = response.getOutputStream();
out.write(responseStr.getBytes("UTF-8"));
out.close();
System.out.println(userName);
} else {
response.getWriter().print("missing...");
}
} catch (Exception e) {
response.getWriter().print(e+".........");
}
}web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>myServer</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>UploadImage</servlet-name>
<servlet-class>servlet.UploadImage</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>UploadImage</servlet-name>
<url-pattern>/uploadImage</url-pattern>
</servlet-mapping>
</web-app> private void myupload(String path,String url) {
RequestParams params = new RequestParams();
params.addBodyParameter("userId", "1301010001");
try {
//对中文参数进行URL编码，然后在服务器那边对参数进行URL解码
params.addBodyParameter("userName", URLEncoder.encode("张三", "utf-8"));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
// 传图片时，要写3个参数
// imageFile：键名
// new File(path)：要上传的图片，path图片路径
// image/jpg：上传图片的扩展名
params.addBodyParameter("imageFile", new File(path), "image/jpg");
HttpUtils http = new HttpUtils();
http.configResponseTextCharset("utf-8");
http.send(HttpMethod.POST,
url,
params, new RequestCallBack<String>() {
@Override
public void onSuccess(ResponseInfo<String> responseInfo) {
String resultStr = responseInfo.result;
Log.e("1", "上传成功：" + resultStr);
}
@Override
public void onFailure(HttpException error, String msg) {
Log.e("1", "上传失败：" + error.getExceptionCode() + ":" + msg);
}
});
}