使用JNA读取dll文件
作者:互联网
由于项目需要进行读卡操作,需要使用java进行读取dll文件 设备:德卡T10 1. 引入POM文件
<dependency> <groupId>net.java.dev.jna</groupId> <artifactId>jna</artifactId> <version>5.6.0</version> </dependency>
2.写入接口
import com.sun.jna.Library;import com.sun.jna.Native; import com.sun.jna.NativeLong; public interface WINAPI extends Library{ WINAPI INSTANCE = Native.loadLibrary("SSCard",WINAPI.class); //初始化 NativeLong Init(String s1, String s2); //读取社保卡 NativeLong ReadCardBas(byte[] s1,int s2,byte[] s3,int s4); //校验PIN码 NativeLong VerifyPIN(byte[] s1,int s2); //修改PIN码 NativeLong ChangePIN(byte[] s1,int s2); //读身份证信息 NativeLong ReadSFZ(byte[] s1,int s2,byte[] s3,int s4); //读取二维码信息 NativeLong GetQRBase(int s0,byte[] s1,int s2,byte[] s3,int s4); //校验医保密码 NativeLong VerifyYBPZPass(byte[] s1,int s2); //修改医保密码 NativeLong ChangeYBPZPass(byte[] s1,byte[] s2,byte[] s3,byte[] s4,byte[] s5); }
3.写对应的方法类
PS:
1.byte[]不是传入参数,而是返回参数,进行字节转字符串后才能获取对应的参数
2.由于德卡为了匹配大多数电脑,必须使用32位JDK才能读取成功,否则报错找不到dll文件路径
3.解码类型为GBK
德卡T10文档参照附件
import com.sun.jna.NativeLong; import io.renren.modules.back.service.WINAPI; import org.springframework.stereotype.Component; import java.io.UnsupportedEncodingException; @Component public class DKUtil { public static String pUrl="http://10.126.105.66/hsa-hgs-adapt/api/card/initDll"; private static String test() throws UnsupportedEncodingException { //jna linux相对路径调用c/c++接口时候,名称必须是lib开头,且第一个参数是lib后面的名称,如libtest.so,加载时候应该使用test来加载 //jna win相对路径调用c/c++接口时候,直接名称不加后缀调用,如test.dll,加载时候应该使用test来加载 //jna linux绝对路径调用c/c++接口时候,完整路径加上后缀,如test.so,加载时候应该使用/opt/test.so来加载 //jna win相对路径调用c/c++接口时候,完整路径可以不接后缀,如test.dll,加载时候应该使用D:\\test来加载 // Test lib = (Test) Native.loadLibrary("test_64", Test.class); //Test lib = Native.loadLibrary(path, Test.class); // 例1 NativeLong nativeLong = WINAPI.INSTANCE.Init(pUrl, "620100"); System.out.println("11111" + nativeLong); byte[] chars1 = new byte[4096]; byte[] chars2 = new byte[4096]; NativeLong nativeLong1 = WINAPI.INSTANCE.ReadSFZ(chars1, 4096, chars2, 4096); String result; System.out.println("22222222:" + nativeLong1); result = new String(chars1, "GBK"); result = result + "|" + new String(chars2, "GBK"); System.out.println(result); return result; } /** * 初始化 * @returnR */ public static R init() { NativeLong nativeLong= WINAPI.INSTANCE.Init(pUrl,"620100"); if (!"1".equals(nativeLong)){ return R.ok().put("msg","初始化成功"); }else { return R.error().put("msg","初始化失败"); } } /** * 读取身份证信息 * @return */ public static R getSFZ() throws UnsupportedEncodingException { R r=init(); if (!"0".equals(r.get("code").toString())){ return r; } byte[] chars1 = new byte[4096]; byte[] chars2 = new byte[4096]; NativeLong nativeLong=WINAPI.INSTANCE.ReadSFZ(chars1,4096,chars2,4096); String result; if ("0".equals(nativeLong.toString())){ result=new String(chars1,"GBK"); result=result+"|"+new String(chars2,"GBK"); System.out.println(result); return R.ok().put("msg",result); }else { result=new String(chars1,"GBK"); result=result+"|"+new String(chars2,"GBK"); System.out.println(result); return R.error().put("msg",result); } } /** * 读取社保卡信息 * @return */ public static R getYBCard() throws UnsupportedEncodingException { init(); byte[] chars1 = new byte[4096]; byte[] chars2 = new byte[4096]; NativeLong nativeLong=WINAPI.INSTANCE.ReadCardBas(chars1,4096,chars2,4096); String result; if ("1".equals(nativeLong)){ result=new String(chars1,"GBK"); result=result+"|"+new String(chars2,"GBK"); return R.ok().put("msg",result); }else { result=new String(chars1,"GBK"); result=result+"|"+new String(chars2,"GBK"); return R.error().put("msg",result); } } /** * 读取二维码 * @return */ public static R getQRBase() throws UnsupportedEncodingException { init(); byte[] chars1 = new byte[1024]; byte[] chars2 = new byte[1024]; NativeLong nativeLong=WINAPI.INSTANCE.GetQRBase(100,chars1,4096,chars2,4096); String result; if ("1".equals(nativeLong)){ result=new String(chars1,"GBK"); return R.ok().put("Content",result); }else { result=new String(chars1,"GBK"); return R.error().put("Content",result); } } public static void main(String[] args) throws UnsupportedEncodingException { System.out.println(getSFZ()); } }
标签:String,NativeLong,dll,JNA,result,new,byte,chars1,读取 来源: https://www.cnblogs.com/king-dom/p/15841807.html