ZXing是一个开放源代码的，用Java实现的多种格式的1D/2D条码图像处理库，它包括了联系到其它语言的port。Zxing能够实现使用手机的内置的摄像头完毕条形码的扫描及解码。该项目可实现的条形码编码和解码。
眼下支持下面格式：
zxing官网说明：https://github.com/zxing/zxing/wiki/Getting-Started-Developing
源代码下载：https://github.com/zxing/zxing
我下载的是releases版本号：https://github.com/zxing/zxing/releases
须要的工具：
Ant: http://ant.apache.org/bindownload.cgi
Maven: http://maven.apache.org/download.cgi
我下载的是Windows版的。假设是Linux须要下载Linux版。这里仅仅尝试Windows下编译。
下载后在合适的文件夹下解压，将bin文件夹加入到环境变量。跟JDK方法一样。
这里仅仅配置下ant的环境变量
1.我的电脑右键
2.点击“属性”
3.点击“环境变量”
watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZGVuZzB6aGFvdGFp/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast" alt="">
4.点击“编辑”
watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZGVuZzB6aGFvdGFp/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast" alt="">
加入解压后的bin到Path就能够了，记得用;结束。验证下
配置编译
确保你已经有了java执行环境，如JAVA_HOME、CLASSPATH、PATH都配置好了
进入到zxing-zxing-3.1.0\android文件夹，输入命令：android update project --path .
D:\zxing\zxing-zxing-3.1.0\android>android update project --path .
Error: The project either has no target set or the target is invalid.
Please provide a --target to the 'android.bat update' command. D:\zxing\zxing-zxing-3.1.0\android>
但提示出错了，须要我们提供一个target，输入命令：android list targets
D:\zxing\zxing-zxing-3.1.0\android>android list targets
Available Android targets:
----------
id: 1 or "android-7"
Name: Android 2.1
Type: Platform
API level: 7
Revision: 3
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WVGA800 (default), WVGA854
ABIs : armeabi
----------
id: 2 or "android-8"
Name: Android 2.2
Type: Platform
API level: 8
Revision: 3
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WVGA800 (default), WVGA854
ABIs : armeabi
----------
id: 3 or "android-10"
Name: Android 2.3.3
Type: Platform
API level: 10
Revision: 2
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WVGA800 (default), WVGA854
ABIs : armeabi, x86
----------
id: 4 or "android-11"
Name: Android 3.0
Type: Platform
API level: 11
Revision: 2
Skins: WXGA (default)
ABIs : armeabi
----------
id: 5 or "android-12"
Name: Android 3.1
Type: Platform
API level: 12
Revision: 3
Skins: WXGA (default)
ABIs : armeabi
----------
id: 6 or "android-13"
Name: Android 3.2
Type: Platform
API level: 13
Revision: 1
Skins: WXGA (default)
ABIs : armeabi
----------
id: 7 or "android-14"
Name: Android 4.0
Type: Platform
API level: 14
Revision: 3
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WSVGA, WVGA800 (default), WVGA854, W
XGA720, WXGA800
ABIs : no ABIs.
----------
id: 8 or "android-15"
Name: Android 4.0.3
Type: Platform
API level: 15
Revision: 3
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WSVGA, WVGA800 (default), WVGA854, W
XGA720, WXGA800
ABIs : no ABIs.
----------
id: 9 or "android-16"
Name: Android 4.1.2
Type: Platform
API level: 16
Revision: 4
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WSVGA, WVGA800 (default), WVGA854, W
XGA720, WXGA800, WXGA800-7in
ABIs : no ABIs.
----------
id: 10 or "android-17"
Name: Android 4.2.2
Type: Platform
API level: 17
Revision: 2
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WSVGA, WVGA800 (default), WVGA854, W
XGA720, WXGA800, WXGA800-7in
ABIs : no ABIs.
----------
id: 11 or "android-18"
Name: Android 4.3
Type: Platform
API level: 18
Revision: 1
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WSVGA, WVGA800 (default), WVGA854, W
XGA720, WXGA800, WXGA800-7in
ABIs : armeabi-v7a, x86
----------
id: 12 or "android-19"
Name: Android 4.4.2
Type: Platform
API level: 19
Revision: 3
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WSVGA, WVGA800 (default), WVGA854, W
XGA720, WXGA800, WXGA800-7in
ABIs : no ABIs. D:\zxing\zxing-zxing-3.1.0\android>
依据输出的ID，加上target，命令：android update project --target 7 --path .
D:\zxing\zxing-zxing-3.1.0\android>android update project --target 7 --path .
Updated and renamed default.properties to project.properties
Updated local.properties
No project name specified, using Activity name 'CaptureActivity'.
If you wish to change it, edit the first line of build.xml.
Added file D:\zxing\zxing-zxing-3.1.0\android\build.xml
Added file D:\zxing\zxing-zxing-3.1.0\android\proguard-project.txt D:\zxing\zxing-zxing-3.1.0\android>
会生成下面文件
watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZGVuZzB6aGFvdGFp/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast" alt="">
当中：local.properties文件的内容是：SDK的文件夹
# This file is automatically generated by Android Tools.
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
#
# This file must *NOT* be checked into Version Control Systems,
# as it contains information specific to your local configuration. # location of the SDK. This is only used by Ant
# For customization when using a Version Control System, please read the
# header note.
sdk.dir=E:\\Android\\adt-bundle-windows-x86\\sdk
编译jar包在zxing-zxing-3.1.0\core文件夹下输入：mvn -DskipTests -Dgpg.skip=true install
D:\zxing\zxing-zxing-3.1.0\core>mvn -DskipTests -Dgpg.skip=true install
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building ZXing Core 3.1.0
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ core ---
Downloading: http://repo.maven.apache.org/maven2/classworlds/classworlds/1.1/cla
ssworlds-1.1.pom
Downloading: http://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-util
s/2.0.5/plexus-utils-2.0.5.pom
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/shared/maven-f
iltering/1.1/maven-filtering-1.1.pom
Downloading: http://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-inte
rpolation/1.13/plexus-interpolation-1.13.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.828 s
[INFO] Finished at: 2014-07-23T10:46:18+08:00
[INFO] Final Memory: 8M/20M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:2
.6:resources (default-resources) on project core: Execution default-resources of
goal org.apache.maven.plugins:maven-resources-plugin:2.6:resources failed: Plug
in org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencie
s could not be resolved: Failed to collect dependencies at org.apache.maven.plug
ins:maven-resources-plugin:jar:2.6 -> org.apache.maven:maven-core:jar:2.0.6 -> c
lassworlds:classworlds:jar:1.1: Failed to read artifact descriptor for classworl
ds:classworlds:jar:1.1: Could not transfer artifact classworlds:classworlds:pom:
1.1 from/to central (http://repo.maven.apache.org/maven2): repo.maven.apache.org
: Unknown host repo.maven.apache.org -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e swit
ch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please rea
d the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResoluti
onException
D:\zxing\zxing-zxing-3.1.0\core>
出现了下面错误信息，因为须要下载一些东西。但常常被和谐（你懂的）。导致无法下载。仅仅能用VPN
[INFO] Installing D:\zxing\zxing-zxing-3.1.0\core\pom.xml to C:\Documents and Se
ttings\Administrator\.m2\repository\com\google\zxing\core\3.1.0\core-3.1.0.pom
[INFO] Installing D:\zxing\zxing-zxing-3.1.0\core\target\core-3.1.0-javadoc.jar
to C:\Documents and Settings\Administrator\.m2\repository\com\google\zxing\core\
3.1.0\core-3.1.0-javadoc.jar
[INFO] Installing D:\zxing\zxing-zxing-3.1.0\core\target\core-3.1.0-sources.jar
to C:\Documents and Settings\Administrator\.m2\repository\com\google\zxing\core\
3.1.0\core-3.1.0-sources.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 04:00 min
[INFO] Finished at: 2014-07-23T10:53:25+08:00
[INFO] Final Memory: 18M/67M
[INFO] ------------------------------------------------------------------------
D:\zxing\zxing-zxing-3.1.0\core>
执行完之后core文件夹下会生成一个target文件夹，当中：core-3.1.0.jar就是我们须要的jar包
在这里时能够直接下载jar包：http://repo1.maven.org/maven2/com/google/zxing/
编译Android项目，生成apk
D:\zxing\zxing-zxing-3.1.0\android>ant debug
Buildfile: D:\zxing\zxing-zxing-3.1.0\android\build.xml -set-mode-check: -set-debug-files: -check-env:
[checkenv] Android SDK Tools Revision 22.0.5
[checkenv] Installed at E:\Android\adt-bundle-windows-x86\sdk -setup:
[echo] Project Name: CaptureActivity
[gettype] Project Type: Application -set-debug-mode: -debug-obfuscation-check: -pre-build: -build-setup:
[getbuildtools] Using latest Build Tools: 18.0.1
[echo] Resolving Build Target for CaptureActivity...
[gettarget] Project Target: Android 4.0
[gettarget] API level: 14
[gettarget] WARNING: Attribute minSdkVersion in AndroidManifest.xml (15) is high
er than the project target API level (14)
[echo] ----------
[echo] Creating output directories if needed...
[echo] ----------
[echo] Resolving Dependencies for CaptureActivity...
[dependency] Library dependencies:
[dependency] No Libraries
[dependency]
[dependency] ------------------
[dependency] API<=15: Adding annotations.jar to the classpath.
[echo] ----------
[echo] Building Libraries with 'debug'...
[subant] No sub-builds to iterate on -code-gen:
[mergemanifest] Found Deleted Target File
[mergemanifest] Merging AndroidManifest files into one.
[mergemanifest] Manifest merger disabled. Using project manifest only.
[echo] Handling aidl files...
[aidl] No AIDL files to compile.
[echo] ----------
[echo] Handling RenderScript files...
[renderscript] No RenderScript files to compile.
[echo] ----------
[echo] Handling Resources...
[aapt] Found Deleted Target File
[aapt] Generating resource IDs...
[echo] ----------
[echo] Handling BuildConfig class...
[buildconfig] Generating BuildConfig class. -pre-compile: -compile:
[javac] Compiling 75 source files to D:\zxing\zxing-zxing-3.1.0\android\bin\
classes
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\DecodeFormatManager.java:59: 错误: -source 1.5 中不支持 diamond 运算符
[javac] FORMATS_FOR_MODE = new HashMap<>();
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\DecodeHintManager.java:58: 错误: -source 1.5 中不支持 diamond 运算符
[javac] Map<String,String> map = new HashMap<>();
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\DecodeThread.java:59: 错误: -source 1.5 中不支持 diamond 运算符
[javac] hints = new EnumMap<>(DecodeHintType.class);
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\HttpHelper.java:41: 错误: -source 1.5 中不支持 diamond 运算符
[javac] private static final Collection<String> REDIRECTOR_DOMAINS = new H
ashSet<>(Arrays.asList(
[javac]
^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\HttpHelper.java:157: 错误: -source 1.5 中不支持 multi-catch 语句
[javac] } catch (IOException | NullPointerException ioe) {
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 multi-catch 语句)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\LocaleManager.java:46: 错误: -source 1.5 中不支持 diamond 运算符
[javac] GOOGLE_COUNTRY_TLD = new HashMap<>();
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\PreferencesFragment.java:74: 错误: -source 1.5 中不支持 diamond 运算符
[javac] Collection<CheckBoxPreference> checked = new ArrayList<>(checkBo
xPrefs.length);
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\ViewfinderView.java:72: 错误: -source 1.5 中不支持 diamond 运算符
[javac] possibleResultPoints = new ArrayList<>(5);
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\book\SearchBookContentsActivity.java:214: 错误: -source 1.5 中不支持 diamond
运算符
[javac] List<SearchBookContentsResult> items = new ArrayList<>(cou
nt);
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\camera\AutoFocusManager.java:39: 错误: -source 1.5 中不支持 diamond 运算符
[javac] FOCUS_MODES_CALLING_AF = new ArrayList<>(2);
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\clipboard\ClipboardInterface.java:41: 错误: -source 1.5 中不支持 multi-catch
语句
[javac] } catch (NullPointerException | IllegalStateException e) {
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 multi-catch 语句)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\encode\ContactEncoder.java:80: 错误: -source 1.5 中不支持 diamond 运算符
[javac] Collection<String> uniques = new HashSet<>(2);
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\encode\QRCodeEncoder.java:316: 错误: -source 1.5 中不支持 diamond 运算符
[javac] List<String> values = new ArrayList<>(keys.length);
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\encode\VCardContactEncoder.java:83: 错误: -source 1.5 中不支持 diamond 运算符 [javac] List<Map<String,Set<String>>> metadataForIndex = new ArrayList<>
();
[javac] ^ [javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\history\HistoryManager.java:93: 错误: -source 1.5 中不支持 diamond 运算符
[javac] List<HistoryItem> items = new ArrayList<>();
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\result\supplement\BookResultInfoRetriever.java:84: 错误: -source 1.5 中不支持
diamond 运算符
[javac] authors = new ArrayList<>(authorsArray.length());
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\result\supplement\SupplementalInfoRetriever.java:78: 错误: -source 1.5 中不支
持 diamond 运算符
[javac] textViewRef = new WeakReference<>(textView);
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\share\LoadPackagesAsyncTask.java:61: 错误: -source 1.5 中不支持 diamond 运算
符
[javac] List<AppInfo> labelsPackages = new ArrayList<>();
[javac] ^
[javac] (请使用 -source 7 或更高版本号以启用 diamond 运算符)
[javac] 18 个错误 BUILD FAILED
E:\Android\adt-bundle-windows-x86\sdk\tools\ant\build.xml:712: The following err
or occurred while executing this line:
E:\Android\adt-bundle-windows-x86\sdk\tools\ant\build.xml:726: Compile failed; s
ee the compiler error output for details. Total time: 2 seconds D:\zxing\zxing-zxing-3.1.0\android>
这里报了两个问题
一、[gettarget] WARNING: Attribute minSdkVersion in AndroidManifest.xml (15) is higher than the project target API level (14)
原因是：project.properties文件里配置的target=android-14而AndroidManifest.xml文件里<uses-sdk android:minSdkVersion="15" android:targetSdkVersion="19"/>
改动ses-sdk android:minSdkVersion="14"就能够了。
二、是JDK版本号的问题
改动：E:\Android\adt-bundle-windows-x86\sdk\tools\ant\build.xml
<property name="java.encoding" value="UTF-8" />
<property name="java.target" value="1.5" />
<property name="java.source" value="1.5" />
<property name="java.compilerargs" value="" />
<property name="java.compiler.classpath" value="" />
改成
<property name="java.encoding" value="UTF-8" />
<property name="java.target" value="7" />
<property name="java.source" value="7" />
<property name="java.compilerargs" value="" />
<property name="java.compiler.classpath" value="" />
前面的错误没有了。但出现新的问题
D:\zxing\zxing-zxing-3.1.0\android>ant debug
Buildfile: D:\zxing\zxing-zxing-3.1.0\android\build.xml -set-mode-check: -set-debug-files: -check-env:
[checkenv] Android SDK Tools Revision 22.0.5
[checkenv] Installed at E:\Android\adt-bundle-windows-x86\sdk -setup:
[echo] Project Name: CaptureActivity
[gettype] Project Type: Application -set-debug-mode: -debug-obfuscation-check: -pre-build: -build-setup:
[getbuildtools] Using latest Build Tools: 18.0.1
[echo] Resolving Build Target for CaptureActivity...
[gettarget] Project Target: Android 4.0.3
[gettarget] API level: 15
[echo] ----------
[echo] Creating output directories if needed...
[echo] ----------
[echo] Resolving Dependencies for CaptureActivity...
[dependency] Library dependencies:
[dependency] No Libraries
[dependency]
[dependency] ------------------
[dependency] API<=15: Adding annotations.jar to the classpath.
[echo] ----------
[echo] Building Libraries with 'debug'...
[subant] No sub-builds to iterate on -code-gen:
[mergemanifest] Found Deleted Target File
[mergemanifest] Merging AndroidManifest files into one.
[mergemanifest] Manifest merger disabled. Using project manifest only.
[echo] Handling aidl files...
[aidl] No AIDL files to compile.
[echo] ----------
[echo] Handling RenderScript files...
[renderscript] No RenderScript files to compile.
[echo] ----------
[echo] Handling Resources...
[aapt] Found Deleted Target File
[aapt] Generating resource IDs...
[echo] ----------
[echo] Handling BuildConfig class...
[buildconfig] Generating BuildConfig class. -pre-compile: -compile:
[javac] Compiling 73 source files to D:\zxing\zxing-zxing-3.1.0\android\bin\
classes
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\camera\CameraConfigurationManager.java:57: 错误: 找不到符号
[javac] cameraResolution = CameraConfigurationUtils.findBestPreviewSizeV
alue(parameters, screenResolution);
[javac] ^
[javac] 符号: 变量 CameraConfigurationUtils
[javac] 位置: 类 CameraConfigurationManager
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\camera\CameraConfigurationManager.java:79: 错误: 找不到符号
[javac] CameraConfigurationUtils.setFocus(
[javac] ^
[javac] 符号: 变量 CameraConfigurationUtils
[javac] 位置: 类 CameraConfigurationManager
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\camera\CameraConfigurationManager.java:87: 错误: 找不到符号
[javac] CameraConfigurationUtils.setInvertColor(parameters);
[javac] ^
[javac] 符号: 变量 CameraConfigurationUtils
[javac] 位置: 类 CameraConfigurationManager
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\camera\CameraConfigurationManager.java:91: 错误: 找不到符号
[javac] CameraConfigurationUtils.setBarcodeSceneMode(parameters);
[javac] ^
[javac] 符号: 变量 CameraConfigurationUtils
[javac] 位置: 类 CameraConfigurationManager
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\camera\CameraConfigurationManager.java:95: 错误: 找不到符号
[javac] CameraConfigurationUtils.setVideoStabilization(parameters);
[javac] ^
[javac] 符号: 变量 CameraConfigurationUtils
[javac] 位置: 类 CameraConfigurationManager
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\camera\CameraConfigurationManager.java:96: 错误: 找不到符号
[javac] CameraConfigurationUtils.setFocusArea(parameters);
[javac] ^
[javac] 符号: 变量 CameraConfigurationUtils
[javac] 位置: 类 CameraConfigurationManager
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\camera\CameraConfigurationManager.java:97: 错误: 找不到符号
[javac] CameraConfigurationUtils.setMetering(parameters);
[javac] ^
[javac] 符号: 变量 CameraConfigurationUtils
[javac] 位置: 类 CameraConfigurationManager
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\camera\CameraConfigurationManager.java:148: 错误: 找不到符号
[javac] CameraConfigurationUtils.setTorch(parameters, newSetting);
[javac] ^
[javac] 符号: 变量 CameraConfigurationUtils
[javac] 位置: 类 CameraConfigurationManager
[javac] D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\andro
id\camera\CameraConfigurationManager.java:151: 错误: 找不到符号
[javac] CameraConfigurationUtils.setBestExposure(parameters, newSettin
g);
[javac] ^
[javac] 符号: 变量 CameraConfigurationUtils
[javac] 位置: 类 CameraConfigurationManager
[javac] 9 个错误 BUILD FAILED
E:\Android\adt-bundle-windows-x86\sdk\tools\ant\build.xml:712: The following err
or occurred while executing this line:
E:\Android\adt-bundle-windows-x86\sdk\tools\ant\build.xml:726: Compile failed; s
ee the compiler error output for details. Total time: 2 seconds D:\zxing\zxing-zxing-3.1.0\android>
缺少CameraConfigurationUtils类
通过搜索。在下面文件夹找到了这个类
watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZGVuZzB6aGFvdGFp/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast" alt="">
直接把这个文件夹复制到D:\zxing\zxing-zxing-3.1.0\android\src\com\google\zxing\client\android\camera
-do-debug:
[zipalign] Running zip align on final apk...
[echo] Debug Package: D:\zxing\zxing-zxing-3.1.0\android\bin\CaptureActivit
y-debug.apk
[propertyfile] Creating new property file: D:\zxing\zxing-zxing-3.1.0\android\bi
n\build.prop
[propertyfile] Updating property file: D:\zxing\zxing-zxing-3.1.0\android\bin\bu
ild.prop
[propertyfile] Updating property file: D:\zxing\zxing-zxing-3.1.0\android\bin\bu
ild.prop
[propertyfile] Updating property file: D:\zxing\zxing-zxing-3.1.0\android\bin\bu
ild.prop -post-build: debug: BUILD SUCCESSFUL
Total time: 11 seconds D:\zxing\zxing-zxing-3.1.0\android>
apk就生成了。
也能够导入到Eclipse后再进行改动。
改动后没有报错，但在执行时出现下面问题
07-23 16:32:47.234: E/AndroidRuntime(18432): FATAL EXCEPTION: main
07-23 16:32:47.234: E/AndroidRuntime(18432): java.lang.ExceptionInInitializerError
07-23 16:32:47.234: E/AndroidRuntime(18432): at java.lang.Class.newInstanceImpl(Native Method)
07-23 16:32:47.234: E/AndroidRuntime(18432): at java.lang.Class.newInstance(Class.java:1319)
07-23 16:32:47.234: E/AndroidRuntime(18432): at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
07-23 16:32:47.234: E/AndroidRuntime(18432): at com.lbe.security.service.core.client.internal.InstrumentationDelegate.newActivity(InstrumentationDelegate.java:234)
07-23 16:32:47.234: E/AndroidRuntime(18432): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1995)
07-23 16:32:47.234: E/AndroidRuntime(18432): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2105)
07-23 16:32:47.234: E/AndroidRuntime(18432): at android.app.ActivityThread.access$600(ActivityThread.java:136)
07-23 16:32:47.234: E/AndroidRuntime(18432): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1201)
07-23 16:32:47.234: E/AndroidRuntime(18432): at android.os.Handler.dispatchMessage(Handler.java:99)
07-23 16:32:47.234: E/AndroidRuntime(18432): at android.os.Looper.loop(Looper.java:137)
07-23 16:32:47.234: E/AndroidRuntime(18432): at android.app.ActivityThread.main(ActivityThread.java:4881)
07-23 16:32:47.234: E/AndroidRuntime(18432): at java.lang.reflect.Method.invokeNative(Native Method)
07-23 16:32:47.234: E/AndroidRuntime(18432): at java.lang.reflect.Method.invoke(Method.java:511)
07-23 16:32:47.234: E/AndroidRuntime(18432): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:808)
07-23 16:32:47.234: E/AndroidRuntime(18432): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:575)
07-23 16:32:47.234: E/AndroidRuntime(18432): at dalvik.system.NativeStart.main(Native Method)
07-23 16:32:47.234: E/AndroidRuntime(18432): Caused by: java.lang.NoClassDefFoundError: com.google.zxing.ResultMetadataType
07-23 16:32:47.234: E/AndroidRuntime(18432): at com.google.zxing.client.android.CaptureActivity.<clinit>(CaptureActivity.java:93)
07-23 16:32:47.234: E/AndroidRuntime(18432): ... 16 more
依照网上非常多说法都是把
到处搜索解决方式。最终在google的帮助下攻克了。
在eclipse中 Properties -> Java Build Path -> "Order and Export"
在Order and Export选项卡中将core.jar提前到第一位 并选中它
然后clean你的project,这一步很重要。别忘记了，我就忘记clean反重复复折腾了好几次
又一次编译执行就能够了
预计是在core.jar之前的包里已经有了同名的class所以编译之后产生的apk执行时找不到真正的引用。并且这个包也须要被同一时候公布到程序中去
但对于我的project还是会报这个错误，后来还是在网上找到的解决的方法。缺少了javase-3.1.0.jar库
生成办法跟core一样D:\zxing\zxing-zxing-3.1.0\javase>mvn -DskipTests -Dgpg.skip=true install
D:\zxing\zxing-zxing-3.1.0\javase>mvn -DskipTests -Dgpg.skip=true install
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building ZXing Java SE extensions 3.1.0
[INFO] ------------------------------------------------------------------------
Downloading: http://repo.maven.apache.org/maven2/com/google/zxing/zxing-parent/3
.1.0/zxing-parent-3.1.0.pom
Downloaded: http://repo.maven.apache.org/maven2/com/google/zxing/zxing-parent/3.
1.0/zxing-parent-3.1.0.pom (21 KB at 12.4 KB/sec)
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ javase --- [INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory D:\zxing\zxing-zxing-3.1.0\javase\src
\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ javase ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 11 source files to D:\zxing\zxing-zxing-3.1.0\javase\target\cla
sses
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ ja
vase ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory D:\zxing\zxing-zxing-3.1.0\javase\src
\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ javase
---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.17:test (default-test) @ javase ---
[INFO] Tests are skipped.
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ javase ---
[INFO] Building jar: D:\zxing\zxing-zxing-3.1.0\javase\target\javase-3.1.0.jar
[INFO]
[INFO] --- maven-javadoc-plugin:2.9.1:jar (attach-javadocs) @ javase ---
[INFO]
正在载入程序包com.google.zxing.client.j2se的源文件...
正在载入程序包com.google.zxing的源文件...
正在构造 Javadoc 信息...
标准 Doclet 版本号 1.7.0_01
正在构建全部程序包和类的树...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\BufferedImageLuminanceSource.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\CommandLineEncoder.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\CommandLineRunner.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\GUIRunner.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\ImageReader.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\MatrixToImageConfig.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\MatrixToImageWriter.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\HtmlAs
setTranslator.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\String
sResourceTranslator.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\overview-frame.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\packag
e-frame.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\packag
e-summary.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\packag
e-tree.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\package-frame.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\package-summary.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\package-tree.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\constant-values.html... 正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\serialized-form.html... 正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\class-use\MatrixToImageWriter.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\class-use\MatrixToImageConfig.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\class-use\ImageReader.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\class-use\GUIRunner.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\class-use\CommandLineRunner.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\class-use\CommandLineEncoder.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\class-use\BufferedImageLuminanceSource.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\class-
use\StringsResourceTranslator.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\class-
use\HtmlAssetTranslator.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\packag
e-use.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\com\google\zxing\client
\j2se\package-use.html...
正在构建全部程序包和类的索引...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\overview-tree.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\index-all.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\deprecated-list.html... 正在构建全部类的索引...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\allclasses-frame.html..
.
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\allclasses-noframe.html
...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\index.html...
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\overview-summary.html..
.
正在生成D:\zxing\zxing-zxing-3.1.0\javase\target\apidocs\help-doc.html...
[INFO] Fixed Javadoc frame injection vulnerability (CVE-2013-1571) in 1 files.
[INFO] Building jar: D:\zxing\zxing-zxing-3.1.0\javase\target\javase-3.1.0-javad
oc.jar
[INFO]
[INFO] --- maven-source-plugin:2.2.1:jar-no-fork (attach-sources) @ javase ---
[INFO] Building jar: D:\zxing\zxing-zxing-3.1.0\javase\target\javase-3.1.0-sourc
es.jar
[INFO]
[INFO] --- maven-install-plugin:2.5.1:install (default-install) @ javase ---
[INFO] Installing D:\zxing\zxing-zxing-3.1.0\javase\target\javase-3.1.0.jar to C
:\Documents and Settings\Administrator\.m2\repository\com\google\zxing\javase\3.
1.0\javase-3.1.0.jar
[INFO] Installing D:\zxing\zxing-zxing-3.1.0\javase\pom.xml to C:\Documents and
Settings\Administrator\.m2\repository\com\google\zxing\javase\3.1.0\javase-3.1.0
.pom
[INFO] Installing D:\zxing\zxing-zxing-3.1.0\javase\target\javase-3.1.0-javadoc.
jar to C:\Documents and Settings\Administrator\.m2\repository\com\google\zxing\j
avase\3.1.0\javase-3.1.0-javadoc.jar
[INFO] Installing D:\zxing\zxing-zxing-3.1.0\javase\target\javase-3.1.0-sources.
jar to C:\Documents and Settings\Administrator\.m2\repository\com\google\zxing\j
avase\3.1.0\javase-3.1.0-sources.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:01 min
[INFO] Finished at: 2014-07-24T12:47:45+08:00
[INFO] Final Memory: 14M/33M
[INFO] ------------------------------------------------------------------------
D:\zxing\zxing-zxing-3.1.0\javase>
生成一个target文件夹
加入到project后
Eclipse版本：v22.0.5-757759
Eclipse版本：v23.0.2.1259578
经測试在Eclipse：v23.0.2.1259578版本号上能够执行在v22.0.5-757759版本号上会报错，假设你的程序还是报错，建议换一个高版本号的Eclipse试下。
扫描结果
watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZGVuZzB6aGFvdGFp/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast" alt="">
导入Eclipse能够编译执行的源代码：http://download.csdn.net/detail/deng0zhaotai/7672273