Jpype工作调研

加载jar包，其中os.pathsep.join表示将字符串使用;号相隔，一同加载到-Djava.class.path路径，即可以同时调用加载的所有jar包中的类

classpath = os.pathsep.join((
        r"D:\code\jar\jar\finsettsJsf-service-api-0.0.1-SNAPSHOT.jar",
        r"D:\code\jar\jar\jsf-1.6.0.jar",
        r"D:\code\jar\jar\finsettsJsf-domain-0.0.1-SNAPSHOT.jar"))
​
# 当指定了jar包后，需要将路径添加到-Djava.class.path路径下，使用addClassPath方法时则不用
startJVM(getDefaultJVMPath(),"-ea", "-Djava.class.path=%s" % classpath)

 

添加目录下的所有jar包

jpype.addClassPath("jar/*")

 

引入java中的包

import jpype.imports
​
# 在java中显示为
import com.jd.jsf.gd.config.ConsumerConfig;
import com.jd.jsf.gd.config.RegistryConfig;
​
​

 

开启JVM服务

# 可以手动加载jvm.dll
jvm_path = 'C:\Program Files\Java\jre1.8.0_211\bin\server\jvm.dll'
startJVM(jvm_path,"-ea")
​
# 或直接通过方法获取jvm路径
startJVM(getDefaultJVMPath(),"-ea")

 

创建对象

# JClass是创建对象的方法
jsfRegistry = JClass("com.jd.jsf.gd.config.RegistryConfig")
jsfRegistry.setIndex("i.jsf.jd.com")
​
# 等价于Java中创建对象的方法
RegistryConfig jsfRegistry = new RegistryConfig();
jsfRegistry.setIndex("i.jsf.jd.com")

 

应用实例

from jpype import *
​
# 如果没有使用此行代码，那么在开启JVM后，无法使用from com.jd.jsf.gd.config import RegistryConfig导入jar包中的类
import jpype.imports
​
def doAutosett():
    
    # 通过指定路径来查找路径下的所有jar包
    jpype.addClassPath("jar/*")
​
    # 启动虚拟机,用-ea可打开断言机制，不加<packagename>和classname时运行所有包和类中的断言，如果希望只运行某些包或类中的断言，可将包名或类名加到-ea之后。
    startJVM(getDefaultJVMPath(),"-ea")
    
    # 导入jar包
    from com.jd.jsf.gd.config import RegistryConfig
    from com.jd.finsetts.service import FinSettGeneralApi
    from com.jd.jsf.gd.config import ConsumerConfig
    from com.alibaba.fastjson import JSON
    from java.util import LinkedList
    from com.jd.finsetts.pojo import FinFeeDetailQuery
    from com.jd.finsetts.export.model.result import Result
    
    # 创建对象，等价于RegistryConfig jsfRegistry = new RegistryConfig();
    jsfRegistry = RegistryConfig()
    # 调用对象中的方法
    jsfRegistry.setIndex("i.jsf.jd.com")
    
    consumerConfig = ConsumerConfig()
    consumerConfig.setInterfaceId("com.jd.finsetts.service.FinSettGeneralApi")
    consumerConfig.setAlias("finSettGeneralApi")
    consumerConfig.setProtocol("jsf")
    consumerConfig.setRegistry(jsfRegistry)
    consumerConfig.setProtocol("jsf")
    consumerConfig.setRegistry(jsfRegistry)
​
    # 字符串分别使用'''、""和'，结构为列表中第一个为json对象，第二个是一个单引号的字符串，在单引号的字符串中包含3个json对象，那么第二个对象就是一个包含3个json对象的字符串
    autoSettString = '''
   [{"amount_GE":"","amount_LE":"","bizBType":"0","bizId":"test_0509360043279238_01267958111601_h","bizType":"532","condType":"1","creator":"lianghuaibin","customerId":"","customerName":"","direction":"","editor":"lianghuaibin","exOne":"","exThree":"","exTwo":"","feeId":"","feeType":"53202","feeTypes":"53202","firstSettle":false,"ids":"","orgId":"bjpa4578","payChannelType":"","productId":"","productName":"","productSku":"","remark":"","settApplyType":"1","sourceId":"","status":"","templateType":"103A"},'{"finSett": {"amount": 16.36,"bizType": "532","customerId": "1039269", "customerName": "测试", "customerType": "2","direction": "1","extend": "","feeType": "53202", "feeTypes": "53202","principalCompany": "10000041","productId": "aggreProfit","productIdFather": "","productName": "测试","remark": "1232","settAmount": 16.36,"settApplyType": "1","settPercent": "100","settType": "WIRE"},"finSettPayInfo": {"amount": 16.36,"bankAccount": "2343657561232423432432","bankBranch": "北京支行","bankCombNumber":"234324","bankName":"聚合测试","bankNo":"ABC","cardid": "","companyName":"宿迁际扬信息科技有限公司","othBankAbbreviation":"bjpa4578","othBankAccount":"2222555443324","othBankBranch":"平安银行股份有限公司北京丰台支行","othBankCombNumber": "307100003264","othBankName":"平安银行"},"settCount":0}']
    '''
    
    # LinkedList<Object> list = JSON.parseObject(autoSettString, LinkedList.class);
    # java语句表现为如上，表示创建LinkedList类型的list变量，其值为...
    # 无需加上之前的类型，直接为list赋值即可
    list = JSON.parseObject(autoSettString,LinkedList.class_)
    
    # 当传入的参数为int类型时，python需要转换为java的数据类型，使用JInt(0)传入
    pageQuery = JSON.parseObject(list.get(JInt(0)).toString(), FinFeeDetailQuery.class_)
    list.remove(JInt(0))
    list.add(JInt(0), pageQuery)
    service = consumerConfig.refer()
​
    # result = Result()
    result = service.autoSett(list)
    print(result.toString())
    return result.toString()
​
if __name__ == '__main__':
    doAutosett()

 

最后附上JPype的官方文档：

https://jpype.readthedocs.io/en/latest/index.html