RPA 应用函数分享之 --- 通过 cmd 命令调用 java jar 包

下面分享几种调用 jar 包的方法：

# coding=utf-8
import os,shutil,sys,subprocess,time

#subprocess调用cmd命令，无数据交互，可以流程下发，调用结果采用java写本地文件python读取的方式
def use_jar_by_cmd():
    cmd_shell = r'java -jar -Xmx1024m D:\ISearch\jar_lib\test.jar '#后面跟参数
    subprocess.Popen(cmd_shell,shell=True,bufsize = 8192)
    find_result()
    write_log_to_excel()

def find_result():
    sign_path = path+'result.finish'
    while True:
        time.sleep(60)
        if os.path.exists(sign_path):
	    break

def write_log_to_excel():
    result_path = path + 'result.log'
    data_titles = ['处理类型','业务编号','处理结果']
    data_values = []
    with open(result_path,'r') as file:
        try:
            for line in file:
                line = line.strip()
		line = line.strip('\n')
                if not line:
                    continue
                else:
                    tmp_data = line.split(';')
		    if len(tmp_data) != 3:
			continue
		    data_values.append(tuple(tmp_data))
        except Exception as e:
            pass
    df = pd.DataFrame.from_records(data_values,columns = data_titles)
    result_file_path = code_path + '\\' + result_file_name
    df.to_excel(result_file_path,index=False)


#subprocess调用cmd命令，有数据交互，只可本地运行，不可以流程下发
def use_jar_by_cmd_another_two():
    cmd_1 = 'd:'
    cmd_2 = 'cd d:\Isearch'
    cmd_3 = r'java -jar -Xmx1024m test.jar '#后面跟参数
    p = subprocess.Popen(cmd_1+'&&'+ cmd_2+'&&'+ cmd_3,shell=True,bufsize = 8192,stdout = subprocess.PIPE)
    p.wait()
    out = p.stdout.readlines()
    print(out)
    if str(out[-1]).find('FINISHED')>-1:
        print('success')
#os.popen调用cmd命令，不可以一条一条调用，每次路径为cmd默认路径
def use_jar_by_cmd_another():
    responce = os.popen('ping www.baidu,com').read()
    print(responce)
#python编写运行bat脚本的方式调用jar包	
def use_jar_by_bat():
    cmd_1 = 'd:'
    cmd_2 = 'cd d:\Isearch'
    cmd_3 = r'java -jar -Xmx1024m test.jar '#后面跟参数
    create_script([cmd_1, cmd_2, cmd_3])
    create_bat()
    openfile(bat_path)

def create_script(cmd_list):
    script_file = open(script_path,'w')
    for cmd_str in cmd_list:
        script_file.write(cmd_str)
	script_file.write('\n')
    script_file.close()

def create_bat():
    bat_file = open(bat_path,'w')
    bat_file.write('@echo off')
    bat_file.write('\n')
    bat_file.write(f'for /f "delims=" %%a in ({script_path}) do (')
    bat_file.write('\n')
    bat_file.write('        %%a')
    bat_file.write('\n')
    bat_file.write(')')
    bat_file.write('\n')
    bat_file.close()

def openfile(filePath):
    os.startfile(filePath)