创建ResultUtils类

<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.13</version>
</dependency>

package sinosoft.bjredcross.common;import com.alibaba.fastjson.JSON;public class ResultUtils { private String msg;
private boolean success = true;
private Object result; public void setSuccess(boolean success) {
this.success = success;
} public String getMsg() {
return msg;
} public void setMsg(String msg) {
this.msg = msg;
} public Object getResult() {
return result;
} public void setResult(Object result) {
this.result = result;
} public ResultUtils() {
} public ResultUtils(boolean success, String msg) {
this.success = success;
this.msg = msg;
} public ResultUtils(boolean success, String msg, Object result) {
this.success = success;
this.msg = msg;
this.result = result;
} public boolean isSuccess() {
return success;
} public Object successResult(){
ResultUtils resultUtils = new ResultUtils();
resultUtils.setSuccess(true);
resultUtils.setMsg("success");
resultUtils.setResult(null);
return JSON.toJSON(resultUtils);
} public Object successResult(Object obj){
if (obj instanceof String){
return successResult(null, (String) obj);
}else{
return successResult(obj, "error");
}
} public Object successResult(Object obj, String msg){
ResultUtils resultUtils = new ResultUtils();
resultUtils.setSuccess(true);
resultUtils.setMsg(msg);
resultUtils.setResult(obj);
return JSON.toJSON(resultUtils);
} public Object errorResult(){
ResultUtils resultUtils = new ResultUtils();
resultUtils.setSuccess(false);
resultUtils.setMsg("error");
resultUtils.setResult(null);
return JSON.toJSON(resultUtils);
}
/*
* 杩斿洖閿欒缁撴灉
* */
public Object errorResult(Object obj){
if (obj instanceof String){
return renderJsonError(null, (String) obj);
}else{
return renderJsonError(obj, "error");
}
} public Object renderJsonError(Object obj, String msg){
ResultUtils resultUtils = new ResultUtils();
resultUtils.setSuccess(false);
resultUtils.setMsg(msg);
resultUtils.setResult(obj);
return JSON.toJSON(resultUtils);
}
}