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java 调用Spring接口上传文件及其他参数填充

程序员文章站 2022-06-29 09:43:29
第一步:在Spring配置中添加以下内容

 

第一步:在spring配置中添加以下内容

<!-- 配置multipartresolver 用于文件上传 使用spring的commosmultipartresolver -->

<bean id="multipartresolver"

class="org.springframework.web.multipart.commons.commonsmultipartresolver"

p:defaultencoding="utf-8" p:maxuploadsize="540000000" p:uploadtempdir="fileupload/temp">

</bean>

 

第二步:编写上传spring接口

/**

 * 上传专报

 * 

 * @param typeid

 * @param userid

 * @param file

 * @return

 */

@responsebody

@requestmapping(params = "uploaddoc")

public return uploaddoc(@requestparam(value = "file", required = true) multipartfile file,string newfilename) {

return r = new return();

system.out.println(newfilename);

try {

// 3.保存word文件

if (file != null) {

// 文件存入临时目录

string thisfile = savefile.save(file, newfilename);

if(thisfile!=null){

r.sete(1);

r.sets("上传专报成功!");

}else{

r.sete(0);

r.sets("上传专报失败!");

}

}

} catch (exception e) {

e.printstacktrace();

r.sets("系统异常");

}

return r;

}

/**

 * 保存文件到临时目录

 * 

 * @param files

 * @param 保存文件路径包含文件名称

 * @return

 */

public static string save(multipartfile files,string newfilepath) {

 

string filename = files.getoriginalfilename();

if (filename == null) {

return null;

}

file file = new file(newfilepath);

if(!file.exists()){

try {

fileoutputstream fop = new fileoutputstream(file);

file.createnewfile();

// 获取文件字节

byte[] contentinbytes = files.getbytes();

fop.write(contentinbytes);// 写入本地

fop.flush();

fop.close();

return newfilepath;

} catch (filenotfoundexception e) {

e.printstacktrace();

} catch (ioexception e) {

e.printstacktrace();

}

}

return null;

}

 

第三步:编写上传程序

上传程序所需jar:httpclient-4.5.3.jar,httpmime-4.5.3.jar

/**

 * 上传文件到指定地址url

 *

 * @param 本地文件

 * @param 请求接口路径

 * @param newfilepath 其他参数

 * @return 是否成功

 */

public static boolean uploadfile(string filepath, string urlstr, string newfilepath) {

try {

string stestsetfile = newfilepath;

string surl = urlstr;//"http://localhost:8080/qxfw/productcontroller.do?uploaddoc";

closeablehttpclient httpclient = httpclients.createdefault();

httppost uploadfile = new httppost(surl);

 

multipartentitybuilder builder = multipartentitybuilder.create();

builder.addtextbody("newfilename", newfilepath, contenttype.text_plain);

 

// 把文件加到http的post请求中

file f = new file(stestsetfile);

 

builder.addbinarybody("file", new fileinputstream(f), contenttype.application_octet_stream, f.getname());

 

httpentity multipart = builder.build();

uploadfile.setentity(multipart);

closeablehttpresponse response = httpclient.execute(uploadfile);

httpentity responseentity = response.getentity();

string sresponse = entityutils.tostring(responseentity, "utf-8");

if (sresponse.contains("成功")) {

return true;

} else {

return false;

}

} catch (exception e) {

// todo: handle exception

e.printstacktrace();

}

return false;

}