Raspberry Pi上的Sqlite4java
问题描述:
我想在Raspberry Pi上使用我的java项目。这段代码依赖于sqlite4java,它使用许多平台的本机实现,包括arm处理器link。Raspberry Pi上的Sqlite4java
问题是,Java无法加载所需的ARM处理器的sqlite包装。我是做如下:
复制的所有版本(试图逐个)我改名为
libsqlite4java-linux-arm.so
预编译库(libsqlite4java-linux-armv5te.so
,libsqlite4java-linux-armv7a.so
,libsqlite4java-linux-arm.so
)的。-
命令
java -Djava.library.path=. -jar sqlite4java.jar -d
给输出:140213:092447.509 FINE [sqlite] Internal: loading library 140213:092447.536 FINE [sqlite] Internal: java.library.path=. 140213:092447.538 FINE [sqlite] Internal: sqlite4java.library.path=null 140213:092447.541 FINE [sqlite] Internal: cwd=/home/pi/sqlite4java-282/. 140213:092447.544 FINE [sqlite] Internal: default path=/home/pi/sqlite4java-282 140213:092447.554 FINE [sqlite] Internal: forced path=null 140213:092447.558 FINE [sqlite] Internal: os.name=linux; os=linux 140213:092447.562 FINE [sqlite] Internal: os.arch=arm 140213:092447.575 FINE [sqlite] Internal: trying to load sqlite4java-linux-arm from /home/pi/sqlite4java-282/libsqlite4java-linux-arm.so 140213:092447.596 FINE [sqlite] Internal: cannot load sqlite4java-linux-arm from /home/pi/sqlite4java-282/libsqlite4java-linux-arm.so: java.lang.UnsatisfiedLinkError: /home/pi/sqlite4java-282/libsqlite4java-linux-arm.so: /home/pi/sqlite4java-282/libsqlite4java-linux-arm.so: cannot open shared object file: No such file or directory 140213:092447.605 FINE [sqlite] Internal: trying to load sqlite4java-linux-arm 140213:092447.617 FINE [sqlite] Internal: cannot load sqlite4java-linux-arm: java.lang.UnsatisfiedLinkError: /home/pi/sqlite4java-282/libsqlite4java-linux-arm.so: /home/pi/sqlite4java-282/libsqlite4java-linux-arm.so: cannot open shared object file: No such file or directory 140213:092447.622 FINE [sqlite] Internal: trying to load sqlite4java-linux 140213:092447.627 FINE [sqlite] Internal: cannot load sqlite4java-linux: java.lang.UnsatisfiedLinkError: no sqlite4java-linux in java.library.path 140213:092447.638 FINE [sqlite] Internal: trying to load sqlite4java 140213:092447.642 FINE [sqlite] Internal: cannot load sqlite4java: java.lang.UnsatisfiedLinkError: no sqlite4java in java.library.path 140213:092447.645 FINE [sqlite] Internal: trying to load sqlite4java-linux-arm-d 140213:092447.660 FINE [sqlite] Internal: cannot load sqlite4java-linux-arm-d: java.lang.UnsatisfiedLinkError: no sqlite4java-linux-arm-d in java.library.path 140213:092447.676 FINE [sqlite] Internal: trying to load sqlite4java-linux-d 140213:092447.680 FINE [sqlite] Internal: cannot load sqlite4java-linux-d: java.lang.UnsatisfiedLinkError: no sqlite4java-linux-d in java.library.path 140213:092447.683 FINE [sqlite] Internal: trying to load sqlite4java-d 140213:092447.699 FINE [sqlite] Internal: cannot load sqlite4java-d: java.lang.UnsatisfiedLinkError: no sqlite4java-d in java.library.path Error: cannot load SQLite java.lang.UnsatisfiedLinkError: /home/pi/sqlite4java-282/libsqlite4java-linux-arm.so: /home/pi/sqlite4java-282/libsqlite4java-linux-arm.so: cannot open shared object file: No such file or directory at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1957) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1882) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1843) at java.lang.Runtime.load0(Runtime.java:795) at java.lang.System.load(System.java:1061) at com.almworks.sqlite4java.Internal.tryLoadFromPath(Internal.java:337) at com.almworks.sqlite4java.Internal.loadLibraryX(Internal.java:117) at com.almworks.sqlite4java.SQLite.main(SQLite.java:368)
试图建立
LD_LIBRARY_PATH
到/usr/lib/arm-linux-gnueabihf
和/usr/lib
在给定的路径文件存在。我已经安装了sqlite3
和libsqlite3-dev
。我使用的是QEMU仿真器的最新raspbian发行:
$ uname -a
$ Linux raspberrypi 3.10.26+ #2 Fri Jan 17 22:13:59 EST 2014 armv6l GNU/Linux
任何帮助将是有益的。
谢谢!
答
最后我找到了解决办法。我必须在Raspbian上构建库文件。 下面是步骤:
- 获取源从here
- 获得从here
- 将
sqlite_wrap.c
到源目录sqlite_wrap.c
文件。您需要native
,sqlite
目录和sqlite_wrap.c
文件。 -
与内容创建
RELEASE
文件:#gcc gcc -O2 -DNDEBUG -fpic -DARM -DARCH="ARM" -DLINUX -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -D_LITTLE_ENDIAN -fno-omit-frame-pointer -fno-strict-aliasing -static-libgcc -I./sqlite -I/usr/lib/jvm/jdk-7-oracle-armhf/include -I/usr/lib/jvm/jdk-7-oracle-armhf/include/linux -DSQLITE_ENABLE_COLUMN_METADATA -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DSQLITE_ENABLE_MEMORY_MANAGEMENT -DSQLITE_ENABLE_STAT2 -DHAVE_READLINE=0 -DSQLITE_THREADSAFE=1 -DSQLITE_THREAD_OVERRIDE_LOCK=-1 -DTEMP_STORE=1 -DSQLITE_OMIT_LOAD_EXTENSION=1 -DSQLITE_OMIT_DEPRECATED -DSQLITE_OS_UNIX=1 -c ./sqlite/sqlite3.c -o sqlite3.o gcc -O2 -DNDEBUG -fpic -DARM -DARCH="ARM" -DLINUX -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -D_LITTLE_ENDIAN -fno-omit-frame-pointer -fno-strict-aliasing -static-libgcc -I./sqlite -I/usr/lib/jvm/jdk-7-oracle-armhf/include -I/usr/lib/jvm/jdk-7-oracle-armhf/include/linux -DSQLITE_ENABLE_COLUMN_METADATA -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DSQLITE_ENABLE_MEMORY_MANAGEMENT -DSQLITE_ENABLE_STAT2 -DHAVE_READLINE=0 -DSQLITE_THREADSAFE=1 -DSQLITE_THREAD_OVERRIDE_LOCK=-1 -DTEMP_STORE=1 -DSQLITE_OMIT_LOAD_EXTENSION=1 -DSQLITE_OMIT_DEPRECATED -DSQLITE_OS_UNIX=1 -c sqlite_wrap.c -o sqlite_wrap.o gcc -O2 -DNDEBUG -fpic -Di586 -DARCH="i586" -DLINUX -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -D_LITTLE_ENDIAN -fno-omit-frame-pointer -fno-strict-aliasing -static-libgcc -I./sqlite -I./native -I/usr/lib/jvm/jdk-7-oracle-armhf/include -I/usr/lib/jvm/jdk-7-oracle-armhf/include/linux -DSQLITE_ENABLE_COLUMN_METADATA -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DSQLITE_ENABLE_MEMORY_MANAGEMENT -DSQLITE_ENABLE_STAT2 -DHAVE_READLINE=0 -DSQLITE_THREADSAFE=1 -DSQLITE_THREAD_OVERRIDE_LOCK=-1 -DTEMP_STORE=1 -DSQLITE_OMIT_LOAD_EXTENSION=1 -DSQLITE_OMIT_DEPRECATED -DSQLITE_OS_UNIX=1 -c ./native/sqlite3_wrap_manual.c -o sqlite3_wrap_manual.o gcc -O2 -DNDEBUG -fpic -Di586 -DARCH="i586" -DLINUX -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -D_LITTLE_ENDIAN -fno-omit-frame-pointer -fno-strict-aliasing -static-libgcc -I./sqlite -I./native -I/usr/lib/jvm/jdk-7-oracle-armhf/include -I/usr/lib/jvm/jdk-7-oracle-armhf/include/linux -DSQLITE_ENABLE_COLUMN_METADATA -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DSQLITE_ENABLE_MEMORY_MANAGEMENT -DSQLITE_ENABLE_STAT2 -DHAVE_READLINE=0 -DSQLITE_THREADSAFE=1 -DSQLITE_THREAD_OVERRIDE_LOCK=-1 -DTEMP_STORE=1 -DSQLITE_OMIT_LOAD_EXTENSION=1 -DSQLITE_OMIT_DEPRECATED -DSQLITE_OS_UNIX=1 -c ./native/intarray.c -o intarray.o gcc -O2 -DNDEBUG -fpic -Di586 -DARCH="i586" -DLINUX -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -D_LITTLE_ENDIAN -fno-omit-frame-pointer -fno-strict-aliasing -static-libgcc -shared -mno-cygwin -Wl,-soname=libsqlite4java-linux-arm.so -o libsqlite4java-linux-arm.so sqlite3.o sqlite_wrap.o sqlite3_wrap_manual.o intarray.o
chmod +x RELEASE
并运行它./RELEASE
。-
libsqlite4java-linux-arm.so
将被构建,您需要将它复制到应用程序的正确路径中。
我似乎面临同样的问题,但有点不确定如何将来源放到我的PI并运行您的命令。任何机会,你可以上传你的内置.so文件下载? – Gillardo
汇编很顺利。将'/ usr/lib/jvm/jdk-7-oracle-armhf /'目录更新为Java版本,并删除'-mno-cygwin'。在树莓派里花了大约10分钟。 – lepe