Htttpclien循环自动生成图片，同时发送参数和文件，模拟http的post请求

package org.jeecg.modules.bussiness.PostTests;

import com.sun.tools.internal.xjc.reader.xmlschema.bindinfo.BIConversion;

import org.apache.commons.httpclient.HttpStatus;

import org.apache.commons.httpclient.methods.multipart.FilePart;

import java.awt.*;

import java.awt.font.FontRenderContext;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import java.util.Random;

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.methods.PostMethod;

import org.apache.commons.httpclient.methods.multipart.StringPart;

import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;

import org.apache.commons.httpclient.methods.multipart.Part;

import org.apache.xmlbeans.impl.xb.xsdschema.Public;

import javax.imageio.ImageIO;

public class Myhttpclient

{

public static void main(String args[]) throws IOException, InterruptedException {

int i=0;

while(true) {

String targetURL = null;// TODO 指定URL

File targetFile = null;// TODO 指定上传文件

targetFile = createImage(i);

i++;

long strParam = System.currentTimeMillis();

String strJson = "{"id":"" +

strParam +

"","createBy":"10001","createTime":"3021-10-15 14:45:41","updateBy":"10001","updateTime":"3021-10-15 14:45:41","sysOrgCode":"10001","securDoorNum":"10001","securDoorStatus":"606","bodyTemperature":"11","metalTestResult":"12","abnormalTemRecord":"13","faceDetectionResults":"44","dateTime":"3021-10-15 14:45:41","realTime":"3021-10-15 14:45:41"}";

targetURL = "http://localhost:8080/jeecg-boot/bussiness/sopManagementInfo/addR";

PostMethod filePost = new PostMethod(targetURL);

filePost.setRequestHeader("X-Access-Token", "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9." +

"eyJleHAiOjE2MzcwMjk2NzQsInVzZXJuYW1lIjoiYWRtaW4ifQ.qXDwEDRItZgRZ-oEsfQXPIGjuimM9LWj9z4Wcmguyrc");

try {
    Part[] parts = {
            new FilePart("myfile", targetFile),
            new StringPart("jsonstr", strJson)
    };
    filePost.setRequestEntity(new MultipartRequestEntity(parts, filePost.getParams()));
    HttpClient client = new HttpClient();

    client.getHttpConnectionManager().getParams().setConnectionTimeout(5000);
    int status = client.executeMethod(filePost);
    if (status == HttpStatus.SC_OK) {
        System.out.println("上传成功");
    } else {
        System.out.println("上传失败");
    }
} catch (Exception ex) {
    ex.printStackTrace();
} finally {
    filePost.releaseConnection();
}

}

}

static  File createImage(int i) throws IOException, InterruptedException {
        int width = 1000;
        int height = 1000;
        String s=create();

        File file = new File("D:/testImage/image"+i+".jpg");

        Font font = new Font("宋体", Font.PLAIN, 150);
        BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = (Graphics2D)bi.getGraphics();
        g2.setBackground(Color.black);
        g2.clearRect(0, 0, width, height);
        g2.setPaint(Color.RED);
        g2.setFont(font);

        FontRenderContext context = g2.getFontRenderContext();
        Rectangle2D bounds = font.getStringBounds(s, context);
        double x = (width - bounds.getWidth()) / 2;
        double y = (height - bounds.getHeight()) / 2;
        double ascent = -bounds.getY();
        double baseY = y + ascent;

        g2.drawString(s, (int)x, (int)baseY);
        ImageIO.write(bi, "jpg", file);
        Thread.sleep(1500);
        return file;
    }

static String  create(){
    String  s="";
    Random r = new Random();
    for(int i=0 ; i<5 ;  i++)
    {
        int ran1 = r.nextInt(1000);
        s+=ran1;
    }
    return s;
}

}