[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:andr
oid-maven-plugin:3.6.0:generate-sources(default-generate-sources) on project co
ntroltower-android: Execution default-generate-sources ofgoal com.jayway.maven.
plugins.android.generation2:android-maven-plugin:3.6.0:generate-sourcesfailed:
No AndroidPlatform Version/API Level has been configured. Add e.g. 17 to the pluginconfiguration. -> [Help 1]
[ERROR]
配置Maven-Android-plugin3.7.0，提示的错误：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:andr
oid-maven-plugin:3.7.0:generate-sources(default-generate-sources) on project co
ntroltower-android: Execution default-generate-sources ofgoal com.jayway.maven.
plugins.android.generation2:android-maven-plugin:3.7.0:generate-sourcesfailed:
No Android APILevel has been configured. Add e.g.17 to the plugin configuration. -> [Help1]
配置Maven-Android-plugin3.8.0，提示的错误：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:andr
oid-maven-plugin:3.8.0:generate-sources(default-generate-sources) on project co
ntroltower-android: The plugincom.jayway.maven.plugins.android.generation2:andr
oid-maven-plugin:3.8.0 requires Maven version 3.1.1 ->[Help 1]
[ERROR]
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.3.0:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.3.0:generate-sourcesfailed:
A required class wasmissing while executingcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.3.0:generate-sources:Lorg/sonatype/aether/RepositorySystem;
配置Maven-Android-plugin3.5.3，提示的错误：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.5.3:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.5.3:generate-sourcesfailed:
A required classwas missing while executingcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.5.3:generate-sources:Lorg/sonatype/aether/RepositorySystem;
配置Maven-Android-plugin3.6.0，提示的错误：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.6.0:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.6.0:generate-sourcesfailed:
A required classwas missing while executingcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.6.0:generate-sources:Lorg/sonatype/aether/RepositorySystem;
配置Maven-Android-plugin3.7.0，提示的错误：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.7.0:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.7.0:generate-sourcesfailed:
A required classwas missing while executingcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.7.0:generate-sources:Lorg/sonatype/aether/RepositorySystem;
配置Maven-Android-plugin3.8.0，提示的错误：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.0:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goal com.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.0:generate-sourcesfailed:
No Android API Level has been configured. Add e.g.17 to the pluginconfiguration. -> [Help 1]
配置Maven-Android-plugin3.8.1，提示的错误：
[ERROR] Failed to execute goal com.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.1:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.1:generate-sourcesfailed:
No Android API Level has been configured. Add e.g.17 to the pluginconfiguration. -> [Help 1]
A required classwas missing while executingcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.7.0:generate-sources:Lorg/sonatype/aether/RepositorySystem;
只能更新Maven-android-plugin插件至3.8.0+版本
对于Maven3.1.1+Maven-androird-plugin3.8.0+配置的错误提示：
[ERROR] Failed to execute goal com.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.0:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.0:generate-sourcesfailed:
No Android API Level has been configured. Add e.g.17 to the pluginconfiguration. -> [Help 1]
No marketplaceentries found to handle android-maven-plugin:3.8.0:consume-aar in Eclipse. Please see Help for more information.
网络连接问题：
[ERROR] Failed to execute goal onproject javadrone-utils: Could not resolve dep
endencies forproject com.codeminders:javadrone-utils:jar:1.3: Failed to collect
dependencies atcom.twilight:h264-decoder:jar:1.0: Failed to read artifact desc
riptor forcom.twilight:h264-decoder:jar:1.0: Could not transfer artifact com.tw
ilight:h264-decoder:pom:1.0from/to central (http://repo.maven.apache.org/maven2): Connection to http://repo.maven.apache.orgrefused: Connection timed out: connect -> [Help 1]
Theproblem is caused by the fact that the STS (the Spring IDE/Eclipse) uses them2e(clipse) plugin but that eclipse:eclipse has been probably been run on theproject. When m2e encounters a "var" .classpath entry, it throws thiserror.
Inorder to fix this problem, you need to do 2 things:
1. Make sure that the version of them2e(clipse) plugin that you're running is at least 1.1.0. The update site ishere:https://repository.sonatype.org/content/repositories/forge-sites/m2e/1.1.0/N/LATEST/
2. Disable the maven nature for theproject (via the right-click menu), run mvn eclipse:clean (while your projectis open inSTS/eclipse), and then re-enable the maven nature.
androi中提到了布尔数组;
布尔数组默认的是false, 并且只会打印false或者是true
布尔数组的例子; 根据字符数组创建布尔数组
char[] c = {'p','u','b','l','i','c'};
//根据字符数组的长度创建布尔数组的个数
boolean[] b = new bool
文章摘自：http://blog.csdn.net/yangwawa19870921/article/details/7553181
在编写HQL时，可能会出现这种代码：
select a.name,b.age from TableA a left join TableB b on a.id=b.id
如果这是HQL，那么这段代码就是错误的，因为HQL不支持
1. 简单的for循环
public static void main(String[] args) {
for (int i = 1, y = i + 10; i < 5 && y < 12; i++, y = i * 2) {
System.err.println("i=" + i + " y="
异常信息本地化
Spring Security支持将展现给终端用户看的异常信息本地化，这些信息包括认证失败、访问被拒绝等。而对于展现给开发者看的异常信息和日志信息（如配置错误）则是不能够进行本地化的，它们是以英文硬编码在Spring Security的代码中的。在Spring-Security-core-x
近来工作中遇到这样的两个需求
1. 给个Date对象，找出该时间所在月的第一天和最后一天
2. 给个Date对象，找出该时间所在周的第一天和最后一天
需求1中的找月第一天很简单，我记得api中有setDate方法可以使用
使用setDate方法前，先看看getDate
var date = new Date();
console.log(date);
// Sat J
MyBatis的update元素的用法与insert元素基本相同，因此本篇不打算重复了。本篇仅记录批量update操作的
sql语句，懂得SQL语句，那么MyBatis部分的操作就简单了。 注意：下列批量更新语句都是作为一个事务整体执行，要不全部成功，要不全部回滚。
MSSQL的SQL语句
WITH R AS（
SELECT 'John' as name, 18 as
