每次都要往主SqlMapConfig的 <mappers></mappers>添加sqlmap的路径，感觉非常繁琐（不觉得繁琐的人除外）。于是我希望能够想spring一样通配路径实现这样的效果：
<mappers>
<mapper resource="cn/com/xxxx/**/sqlmap_*_yw.xml" />
</mappers>
当然这样的条件是命名规范（满足自己的命名规范就行）。比如这个会扫描所有cn/com/xxxx/**/sqlmap_*_yw.xml这种格式的sqlmap.xml
本来想通过spring的aop实现，不过没成，于是我只能修改源码了。如果有更好的方案的朋友可以告诉我，谢谢。
找到org.apache.ibatis.builder.xml.XMLConfigBuilder.class反编后发现：private void parseConfiguration(XNode root) 为SqlMapConfig.xml的解析入口。但是由于是private方法，所以我不得不通过修改源码实现功能。如果想通过通过反射的话就算了，得不偿失。
private void parseConfiguration(XNode root) {
try {
propertiesElement(root.evalNode("properties")); //issue #117 read properties first
typeAliasesElement(root.evalNode("typeAliases"));
pluginElement(root.evalNode("plugins"));
objectFactoryElement(root.evalNode("objectFactory"));
objectWrapperFactoryElement(root.evalNode("objectWrapperFactory"));
settingsElement(root.evalNode("settings"));
environmentsElement(root.evalNode("environments")); // read it after objectFactory and objectWrapperFactory issue #631
databaseIdProviderElement(root.evalNode("databaseIdProvider"));
typeHandlerElement(root.evalNode("typeHandlers"));
XNode xNode=parasMmappers(root.evalNode("mappers"));
mapperElement(xNode);
} catch (Exception e) {
throw new BuilderException("Error parsing SQL Mapper Configuration. Cause: " + e, e);
}
}
private XNode parasMmappers(XNode root){
List<String> resourceList=new ArrayList<String>();
ResourceLoader resourceLoader=new PathMatchingResourcePatternResolver();
Resource[] a_resource;
List<XNode> xNodeList=root.getChildren();
String resource;
String filePath;
try {
for (XNode item : xNodeList) {
resource = item.getStringAttribute("resource");
a_resource = ((ResourcePatternResolver) resourceLoader).getResources(resource);
for (Resource res:a_resource) {
res.getURI();
filePath=res.getFile().toString();
filePath=filePath.substring(filePath.indexOf("classes")+8);
if(resourceList.indexOf(filePath)==-1){
resourceList.add(filePath);
}
}
}
} catch (IOException e) {
log.error(e);
}
StringBuffer xmlBuff = new StringBuffer();
xmlBuff.append("<mappers>");
if (resourceList.size() > 0) {
for (String res : resourceList) {
xmlBuff.append("<mapper resource=\"");
xmlBuff.append(res);
xmlBuff.append("\" />");
}
}
xmlBuff.append("</mappers>");
XPathParser xPathParser = new XPathParser(xmlBuff.toString());
Node node = xPathParser.evalNode("mappers").getNode();
XNode xNode = new XNode(xPathParser,node , null);
return xNode;
}
红色为修改和添加部分。
附上附件。自己编译后根据包路径， 继续放入mybatis-3.2.2.jar就OK了