Java报错之Connection is read-only.

原因很简单，查看spring的配置，发现有如下标签：

<tx:attributes>
<tx:method name="find*" propagation="REQUIRED" read-only="true" />
<tx:method name="query*" propagation="REQUIRED" read-only="true" />
<tx:method name="list*" propagation="REQUIRED" read-only="true" />
<tx:method name="search*" propagation="REQUIRED" read-only="true" />
<tx:method name="get*" propagation="REQUIRED" read-only="true" />
<tx:method name="save*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="create*" propagation="REQUIRED" />
<tx:method name="*" propagation="SUPPORTS" />
</tx:attributes>

带有read_only 的标签，表示，方法名以find,quey,list,search,get 开头，是只读的。

解决办法就是改方法名