ssh 整合常见错误 -

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ssh 整合常见错误

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ssh整合

hibernate

今天工作时：在数据持久层更hibernate打交道时写更新语句使用this.getHibernateTemplate().update(user)发现不能更新，然后查找资料后应该是要获取到主键，对这个update()和saveOrupdate()不太了解，然后在iteye上找到2004年的一个帖子http://www.iteye.com/topic/2712讲的很详细有很多帮助，最后由于自己的取舍，就是用了hql语句 this.getHibernateTemplate().bulkUpdate(hql)进行更新，然后自己不小心发现不能更新报错：org.springframework.dao.InvalidDataAccessResourceUsageException: could not execute query; nested exception is org.hibernate.exception.SQLGrammarException: could not execute query ，很奇怪感觉自己语句对这嘞啊，搜了下ssh整合时常见错误。记录下（也许以后会遇到。。。。）：

1.
org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save():
原因：<id>元素配置不正确，<id>元素缺少其子元素<generator></generator>的配置。解决方法：<id>元素映射了相应数据库表的主键字段，对其子元素<generator class="">,其中class的取值可以为increment、identity、sequence、hilo、native......等，一般取其值为native 。
2.
java.lang.IllegalArgumentException: id to load is required for loading
方案:Users user=(Users)this.getHibernateTemplate().get(Users.class, id);如果以用户名为参数不能用此方法
3.
org.springframework.dao.InvalidDataAccessResourceUsageException: could not execute query; nested exception is org.hibernate.exception.SQLGrammarException: could not execute query
方案：sql语句有错误
4.
严重: Error starting static Resources
java.lang.IllegalArgumentException: Document base D:\Program Files\Apache Software Foundation\Tomcat 5.0\webapps\tomcat-docs does not exist or is not a readable directory
严重: Error in resourceStart()
2007-6-6 23:32:25 org.apache.catalina.core.StandardContext start
严重: Error getConfigured
2007-6-6 23:32:25 org.apache.catalina.core.StandardContext start
严重: Context startup failed due to previous errors
2007-6-6 23:32:25 org.apache.catalina.core.StandardContext start
严重: Exception during cleanup after start failed
LifecycleException: Container StandardContext[/tomcat-docs] has not been started

6.
严重: Exception sending context initialized event to listener instance of class com.sun.faces.config.ConfigureListener
javax.faces.FacesException: Can't parse configuration file:jar:file:/E:/工具/apache-tomcat-6.0.9/apache-tomcat-6.0.9/webapps/jsf02/WEB-INF/lib/jsf-impl.jar!/com/sun/faces/standard-html-renderkit.xml
方案：把tomcat的安装文件换了位置就没事了
7.spring MVC+hibernate
严重: StandardWrapper.Throwable
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: org.objectweb.asm.ClassVisitor.visit(IILjava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)V
Caused by: java.lang.NoSuchMethodError: org.objectweb.asm.ClassVisitor.visit(IILjava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)V
方案：
在使用Spring的AOP编程时，会用到这几个lib：
asm-2.2.2.jar
asm-commons-2.2.2.jar
asm-util-2.2.2.jar
Hibernate使用如果lib：
asm.jar
asm-attrs.jar
其中asm-2.2.2.jar与asm.jar存在类上的冲突！！！
使用其中之一或两者都使用，可能会出现如下错误：
java.lang.NoClassDefFoundError: org/objectweb/asm/CodeVisitor
java.lang.NoClassDefFoundError: org/objectweb/asm/commons/EmptyVisitor
java.lang.NoSuchMethodError: org.objectweb.asm.ClassVisitor.visit。。。。。。
解决办法是：
1.去掉类路径上的关于Hibernate的3个lib
asm.jar
asm-attrs.jar
cglib-2.1.3.jar
2.加入Spring中的以下4个lib
asm-2.2.2.jar
asm-commons-2.2.2.jar
asm-util-2.2.2.jar
cglib-nodep-2.1_3.jar

8.spring MVC+hibernate
Exception in thread "main" org.springframework.dao.InvalidDataAccessResourceUsageException: Could not execute JDBC batch update; nested exception is org.hibernate.exception.SQLGrammarException: Could not execute JDBC batch update
Caused by: org.hibernate.exception.SQLGrammarException: Could not execute JDBC batch update
9.
org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [org.springframework.transaction.interceptor.TransactionProxyFactoryBean] for bean with name 'userService' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: problem with class file or dependent class; nested exception is java.lang.NoClassDefFoundError: org/springframework/aop/framework/AbstractSingletonProxyFactoryBean
Caused by: java.lang.NoClassDefFoundError: org/springframework/aop/framework/AbstractSingletonProxyFactoryBean
方案：没加 spring 2.0 aop libraries
10.
org.apache.jasper.JasperException: Unable to compile class for JSP:
方案：jsp网页中的java代码有问题
11.
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'CompanyController' defined in class path resource [com/company/test/company-config.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'methodNameResolver' of bean class [com.company.action.CompanyController]: Bean property 'methodNameResolver' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
Caused by: org.springframework.beans.NotWritablePropertyException: Invalid property 'methodNameResolver' of bean class [com.company.action.CompanyController]: Bean property 'methodNameResolver' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
控制器没继承MultiActionController

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