我在本机方法中得到了不满意的链接错误
Logcat主要异常
UnsatisfiedLinkError: Native method not found: rg.sqlite.database.sqlite.SQLiteConnection.nativeHasCodec:()Z
完成Logcat
02-04 16:29:12.807: E/AndroidRuntime(5087): FATAL EXCEPTION: main
02-04 16:29:12.807: E/AndroidRuntime(5087): java.lang.UnsatisfiedLinkError: Native method not found: org.sqlite.database.sqlite.SQLiteConnection.nativeHasCodec:()Z
02-04 16:29:12.807: E/AndroidRuntime(5087): at org.sqlite.database.sqlite.SQLiteConnection.nativeHasCodec(Native Method)
02-04 16:29:12.807: E/AndroidRuntime(5087): at org.sqlite.database.sqlite.SQLiteConnection.hasCodec(SQLiteConnection.java:160)
02-04 16:29:12.807: E/AndroidRuntime(5087): at org.sqlite.database.sqlite.SQLiteDatabase.hasCodec(SQLiteDatabase.java:2195)
02-04 16:29:12.807: E/AndroidRuntime(5087): at org.sqlite.database.sqlite.SQLiteConnectionPool.setMaxConnectionPoolSizeLocked(SQLiteConnectionPool.java:952)
02-04 16:29:12.807: E/AndroidRuntime(5087): at org.sqlite.database.sqlite.SQLiteConnectionPool.<init>(SQLiteConnectionPool.java:153)
02-04 16:29:12.807: E/AndroidRuntime(5087): at org.sqlite.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:179)
02-04 16:29:12.807: E/AndroidRuntime(5087): at org.sqlite.database.sqlite.SQLiteDatabase.openInner(SQLiteDatabase.java:804)
02-04 16:29:12.807: E/AndroidRuntime(5087): at org.sqlite.database.sqlite.SQLiteDatabase.open(SQLiteDatabase.java:789)
02-04 16:29:12.807: E/AndroidRuntime(5087): at org.sqlite.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:694)
02-04 16:29:12.807: E/AndroidRuntime(5087): at org.sqlite.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:669)
02-04 16:29:12.807: E/AndroidRuntime(5087): at com.example.samplesqlitedb.SearchDataDB.getAutoSuggestion(SearchDataDB.java:33)
02-04 16:29:12.807: E/AndroidRuntime(5087): at com.example.samplesqlitedb.MainActivity$2.onClick(MainActivity.java:56)
02-04 16:29:12.807: E/AndroidRuntime(5087): at android.view.View.performClick(View.java:4084)
02-04 16:29:12.807: E/AndroidRuntime(5087): at android.view.View$PerformClick.run(View.java:16966)
02-04 16:29:12.807: E/AndroidRuntime(5087): at android.os.Handler.handleCallback(Handler.java:615)
02-04 16:29:12.807: E/AndroidRuntime(5087): at android.os.Handler.dispatchMessage(Handler.java:92)
02-04 16:29:12.807: E/AndroidRuntime(5087): at android.os.Looper.loop(Looper.java:137)
02-04 16:29:12.807: E/AndroidRuntime(5087): at android.app.ActivityThread.main(ActivityThread.java:4745)
02-04 16:29:12.807: E/AndroidRuntime(5087): at java.lang.reflect.Method.invokeNative(Native Method)
02-04 16:29:12.807: E/AndroidRuntime(5087): at java.lang.reflect.Method.invoke(Method.java:511)
02-04 16:29:12.807: E/AndroidRuntime(5087): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
02-04 16:29:12.807: E/AndroidRuntime(5087): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
02-04 16:29:12.807: E/AndroidRuntime(5087): at dalvik.system.NativeStart.main(Native Method)
自定义Java文件SQLiteConnection https://www.dropbox.com/s/5ex6u9rzkwb7kqq/SQLiteConnection.java 错误在线号码160
这是源cpp文件，我编译并创建了二进制“libsqliteX.so”文件http://www.sqlite.org/android/tree?ci=trunk&re=jni|src/org/sqlite/data&expand
我的.so文件https://www.dropbox.com/s/d0u5pyhke54tcd6/libsqliteX.so
所以我认为我必须在本机方法中修改以解决此问题
static jboolean nativeHasCodec(JNIEnv* env, jobject clazz){
#ifdef SQLITE_HAS_CODEC
return true;
#else
return false;
#endif
}
这是CDT GLOBAL BUILD CONSOLE
**** Build of configuration Default for project CustomSqlite ****
D:\software\adt-bundle-windows-x86-20130522\adt-bundle-windows-x86-20130522\android-ndk-r9-windows-x86\android-ndk-r9\ndk-build.cmd all
"Compile++ thumb : sqliteX <= android_database_SQLiteCommon.cpp
"Compile++ thumb : sqliteX <= android_database_SQLiteConnection.cpp
"Compile++ thumb : sqliteX <= android_database_SQLiteGlobal.cpp
"Compile++ thumb : sqliteX <= android_database_SQLiteDebug.cpp
"Compile++ thumb : sqliteX <= JNIHelp.cpp
"Compile++ thumb : sqliteX <= JniConstants.cpp
"Compile thumb : sqliteX <= sqlite3.c
SharedLibrary : libsqliteX.so
Install : libsqliteX.so => libs/armeabi/libsqliteX.so
**** Build Finished ****
**** Build of configuration Default for project CustomSqlite ****
D:\software\adt-bundle-windows-x86-20130522\adt-bundle-windows-x86-20130522\android-ndk-r9-windows-x86\android-ndk-r9\ndk-build.cmd all
Install : libsqliteX.so => libs/armeabi/libsqliteX.so
**** Build Finished ****
所以我认为.so是正确生成的
这是我的Customsqlite.java
它有方法
package org.sqlite.app.customsqlite;
import java.io.File;
import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.Arrays;
import org.sqlite.database.DatabaseErrorHandler;
import org.sqlite.database.sqlite.SQLiteDatabase;
import org.sqlite.database.sqlite.SQLiteOpenHelper;
import org.sqlite.database.sqlite.SQLiteStatement;
import android.app.Activity;
import android.content.Context;
import android.database.Cursor;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
class DoNotDeleteErrorHandler implements DatabaseErrorHandler {
private static final String TAG = "DoNotDeleteErrorHandler";
public void onCorruption(SQLiteDatabase dbObj) {
Log.e(TAG,"Corruption reported by sqlite on database: " + dbObj.getPath());
}
}
public class CustomSqlite extends Activity {
private TextView myTV;
EditText query;
File DB_PATH;
String searchedword;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myTV = (TextView) findViewById(R.id.tv_widget);
query = (EditText) findViewById(R.id.query);
}
public void report_version() {
SQLiteDatabase db = null;
SQLiteStatement st;
String res;
db = SQLiteDatabase.openOrCreateDatabase(":memory:", null);
st = db.compileStatement("SELECT sqlite_version()");
res = st.simpleQueryForString();
myTV.append("SQLite version " + res + "\n\n");
}
public void test_warning(String name, String warning) {
myTV.append("WARNING:" + name + ": " + warning + "\n");
}
public void test_result(String name, String res, String expected) {
myTV.append(name + "... ");
if (res.equals(expected)) {
myTV.append("ok\n");
} else {
myTV.append("FAILED\n");
myTV.append(" res= \"" + res + "\"\n");
myTV.append(" expected=\"" + expected + "\"\n");
}
}
/*
* * Test if the database at DB_PATH is encrypted or not. The db* is assumed
* to be encrypted if the first 6 bytes are anything* other than "SQLite".**
* If the test reveals that the db is encrypted, return the string*
* "encrypted". Otherwise, "unencrypted".
*/
public String db_is_encrypted() throws Exception {
FileInputStream in = new FileInputStream(DB_PATH);
byte[] buffer = new byte[6];
in.read(buffer, 0, 6);
String res = "encrypted";
if (Arrays.equals(buffer, (new String("SQLite")).getBytes())) {
res = "unencrypted";
}
in.close();
return res;
}
/*
* * Use a Cursor to loop through the results of a SELECT query.
*/
public void syno() throws Exception {
DB_PATH = new File("/storage/sdcard1/sk2.db");
SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase(DB_PATH, null);
Cursor c = db.rawQuery("SELECT synsetid, w2.lemma FROM sense LEFT JOIN word AS w2 ON w2.wordid=sense.wordid WHERE sense.synsetid IN (SELECT sense.synsetid FROM word AS w1 LEFT JOIN sense ON w1.wordid=sense.wordid WHERE w1.lemma='"+ searchedword+ "') AND w2.lemma<>'"+ searchedword + "'", null);
ArrayList<String> list1 = new ArrayList<String>();
if (c != null) {
if (c.getCount() > 0) {
c.moveToFirst();
do {
list1.add(c.getString(1));
} while (c.moveToNext());
}
myTV.append("\n\nSYNONYM " + list1.toString());
}
db.close();
}
/*
* * If this is a SEE build, check that encrypted databases work.
*/
public void anto() throws Exception {
SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase(DB_PATH, null);
Cursor c = db.rawQuery("SELECT DISTINCT(w2.lemma) as lemma from word w1 left join sense se1 on w1.wordid = se1.wordid left join synset sy1 on se1.synsetid = sy1.synsetid left join lexlinkref on sy1.synsetid = lexlinkref.synset1id and w1.wordid = lexlinkref.word1id left join word w2 on lexlinkref.word2id = w2.wordid where w1.lemma = '"+ searchedword + "' and lexlinkref.linkid=30",null);
ArrayList<String> list1 = new ArrayList<String>();
if (c.getCount() > 0) {
c.moveToFirst();
do {
list1.add(c.getString(0));
} while (c.moveToNext());
}
myTV.append("\n\nANTONYMS "+list1.toString());
db.close();
}
class MyHelper extends SQLiteOpenHelper {
public MyHelper(Context ctx) {
super(ctx, DB_PATH.getPath(), null, 1);
}
public void onConfigure(SQLiteDatabase db) {
db.execSQL("PRAGMA key = 'secret'");
}
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE t1(x)");
}
public void onUpgrade(SQLiteDatabase db, int iOld, int iNew) {
}
}
/*
* * If this is a SEE build, check that SQLiteOpenHelper still works.
*/
public void def() throws Exception {
DB_PATH = new File("/storage/sdcard1/sk2.db");
String DEFINITION = "select pos, definition, sample FROM word INNER JOIN sense ON word.wordid = sense.wordid INNER JOIN synset ON sense.synsetid = synset.synsetid LEFT JOIN sample ON sample.synsetid = synset.synsetid WHERE lemma ='"+ searchedword + "'";
SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase(DB_PATH, null);
ArrayList<String> list1 = new ArrayList<String>();
Cursor mcursor = db.rawQuery(DEFINITION, null);
mcursor.moveToFirst();
if (mcursor.getCount() > 0) {
do {
list1.add(mcursor.getString(1));
} while (mcursor.moveToNext());
}
myTV.append("\nDEFINATION " + list1.toString());
db.close();
}
public void run_the_tests(View view) {
System.loadLibrary("sqliteX");
myTV.setText("");
searchedword = query.getText().toString();
try {
report_version();
def();
syno();
anto();
} catch (Exception e) {
myTV.append("Exception: " + e.toString() + "\n");
myTV.append(android.util.Log.getStackTraceString(e) + "\n");
}
}
}
由于
答案 0 :(得分：10)
我已经通过添加
解决了这个问题System.loadLibrary("sqliteX");
创建它们的每个方法
就像这样：
public HashMap<String, ArrayList<String>> word_quiz(String qry) {
System.loadLibrary("sqliteX");
ArrayList<String> list1 = new ArrayList<String>();
ArrayList<String> list2 = new ArrayList<String>();
SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase(DB_PATH+ "/sk1.db", null);
Cursor mcursor = db.rawQuery(qry, null);
try {
mcursor.moveToFirst();
do {
list1.add(mcursor.getString(0));
list2.add(mcursor.getString(1));
} while (mcursor.moveToNext());
} catch (IndexOutOfBoundsException e) {
if (MainActivity.logcat_status) {
Log.e("Error", e + "");
}
}
mcursor.close();
mcursor = null;
HashMap<String, ArrayList<String>> final_list = new HashMap<String, ArrayList<String>>();
final_list.put("list1", list1);
final_list.put("list2", list2);
db.close();
return final_list;
}
现在工作正常
我想我也可以使用构造函数来加载库“sqliteX”
感谢大家考虑我的问题：）
答案 1 :(得分：1)
异常来自com.example.samplesqlitedb.MainActivity$2.onClick()处的代码 com / example / samplesqlitedb / MainActivity.java:56 ，但System.loadLibrary()来自org.sqlite.app.customsqlite.CustomSqlite.run_the_tests()。没有证据表明org.sqlite.app.customsqlite.CustomSqlite活动在发生这种情况时甚至被加载到JVM中。
我建议从libsqliteX.so类的静态构造函数中加载org.sqlite.database.sqlite.SQLiteConnection。也许你可以找到一些更好的地方 - 例如com.example.samplesqlitedb.SearchDataDB类，或应用中扩展 android.app.Application的类（如果有的话）。
答案 2 :(得分：1)
与接受的答案相反，考虑只将调用插入System.loadLibrary函数一次，例如进入DbHelper。
public class MyDbHelper extends SQLiteOpenHelper {
static {
System.loadLibrary("sqliteX");
}
}