jquery autoComplete+struts2+mysql5.5

package com.util; import java.io.PrintWriter; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletResponse; import net.sf.json.JSONArray; import net.sf.json.JSONObject; import org.apache.struts2.ServletActionContext; public class JsonUtils { String string="true"; boolean systemOut=false; Map<String,Object> map = new HashMap<String,Object>(); /*将Object对象转换成为json数组对象,如将数组转换为[{a1},{a2},{a3}]*/ public static JSONArray getJsonArrayFromObject(Object o){ return JSONArray.fromObject(o); } /*将Object对象转换成为json对象*/ public static JSONObject getJsonObjectFromObject(Object o){ return JSONObject.fromObject(o); } public void sendJson(){ try { HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/json;charset=utf-8"); PrintWriter out = response.getWriter(); out.print(JSONObject.fromObject(getMap())); if(this.systemOut) System.out.println(JSONObject.fromObject(getMap()).toString()); out.close(); } catch (Exception e) { e.printStackTrace(); } } public void sendJson(Object o){ try { HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/json;charset=utf-8"); PrintWriter out = response.getWriter(); if ( o instanceof Object[] || o instanceof List ) out.print(JSONArray.fromObject(o).toString()); else out.print(JSONObject.fromObject(o).toString()); out.close(); } catch (Exception e) { e.printStackTrace(); } } //增加返回类型 json 或�? html public void sendJson(Object o,String type){ try { HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/"+type+";charset=utf-8"); PrintWriter out = response.getWriter(); if ( o instanceof Object[] || o instanceof List ) out.print(JSONArray.fromObject(o).toString()); else out.print(JSONObject.fromObject(o).toString()); out.close(); } catch (Exception e) { e.printStackTrace(); } } public void sendJson(List list){ try { HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/json;charset=utf-8"); PrintWriter out = response.getWriter(); out.print(getJsonArrayFromObject(list)); if(this.systemOut) System.out.println(getJsonArrayFromObject(list).toString()); out.close(); } catch (Exception e) { e.printStackTrace(); } } public void sendJson(Map map){ this.map=map; sendJson(); } public void sendJsonForGrid(List list){ try { map.put("total", list.size()); map.put("rows",list); HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/json;charset=utf-8"); PrintWriter out = response.getWriter(); out.print(JSONObject.fromObject(getMap())); if(this.systemOut) System.out.println(JSONObject.fromObject(getMap())); out.close(); } catch (Exception e) { e.printStackTrace(); } } public void sendString(){ try { HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/json;charset=utf-8"); PrintWriter out = response.getWriter(); out.print(getString()); if(this.systemOut) System.out.println(getString()); out.close(); } catch (Exception e) { e.printStackTrace(); } } public void sendString(String msg){ try { HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/json;charset=utf-8"); PrintWriter out = response.getWriter(); out.print(msg); if(this.systemOut) System.out.println(msg); out.close(); } catch (Exception e) { e.printStackTrace(); } } public void sendSuccess(){ map.clear(); map.put("success","true"); map.put("msg","操作成功"); sendJson(map); } public void sendSuccess(String msg){ map.clear(); map.put("success","true"); map.put("msg","操作成功"+msg); sendJson(map); } /** * @author :张斌,2011/12/19 * 变更:对map多添加一个key-value(message:操作失败!) * 原因:与MessageResult中的属�?message�?�� */ public void sendFailure(){ map.clear(); map.put("success","false"); map.put("msg","操作失败"); map.put("message","操作失败"); sendJson(map); } public void sendFailure(String msg){ map.clear(); map.put("success","false"); map.put("msg","操作失败"+msg); sendJson(map); } public void sendJsonForDzsw(Object o){ map.clear(); map.put("data",o); map.put("success", true); sendJson(map); } public String getString() { return string; } public void setString(String string) { this.string = string; } public Map<String, Object> getMap() { return map; } public void setMap(Map<String, Object> map) { this.map = map; } public boolean isSystemOut() { return systemOut; } public void setSystemOut(boolean systemOut) { this.systemOut = systemOut; } }