DiskLruCache

1 使用；

```

publicclassBasicCache{

privateDiskLruCache diskCache;

privateString fileName ="cache";

publicBasicCache(String filePath,longmaxDiskSize){

try{

diskCache = DiskLruCache.open(newFile(filePath, fileName),1,1, maxDiskSize);

}catch(IOException exc) {

diskCache =null;

}

}

/**

* url转MD5

*

*@paramurl

*@return

*/

privateStringurlToMD5(HttpUrl url){

returnMD5.getMD5(url.toString());

}

/**

* 添加缓存数据

*

*@paramresponse

*/

publicvoidaddCache(String date, Response response){

if(diskCache ==null) {

return;

}

Buffer buffer =newBuffer();

try{

buffer.write(date.getBytes());

byte[] rawResponse = buffer.readByteArray();

DiskLruCache.Editor editor = diskCache.edit(urlToMD5(response.request().url()));

editor.set(0,newString(rawResponse, Charset.defaultCharset()));

editor.commit();

buffer.clone();

}catch(IOException exc) {

buffer.clone();

}

}

/**

* 获取缓存数据

*

*@paramrequest

*@return

*/

publicResponseBodygetCache(Request request){

if(diskCache ==null) {

returnnull;

}

String cacheKey = urlToMD5(request.url());

try{

DiskLruCache.Snapshot cacheSnapshot = diskCache.get(cacheKey);

if(cacheSnapshot !=null) {

returnResponseBody.create(null, cacheSnapshot.getString(0).getBytes());

}else{

returnnull;

}

}catch(IOException exc) {

returnnull;

}

}

/**

* 删除缓存

*

*@paramrequest

*/

publicvoiddeleteCache(Request request){

if(diskCache ==null) {

return;

}

try{

String cacheKey = urlToMD5(request.url());

DiskLruCache.Snapshot cacheSnapshot = diskCache.get(cacheKey);

if(cacheSnapshot !=null) {

diskCache.remove(cacheKey);

}

}catch(IOException e) {

e.printStackTrace();

}

}

}

```

2 源码；

3 注意事项；

4 在项目中使用；