?? jsondistrictservlet.java
字號:
package allan.ajax.action;
import allan.ajax.entity.District;
import allan.ajax.service.DistrictService;
public class JsonDistrictServlet extends DistrictServlet {
protected String getInfo(String zipcode) {
DistrictService districtService = new DistrictService();
District district = districtService.getDistrict(zipcode);
return getJsonData(district);
}
@Override
protected String getContentType() {
return "text/plain;charset=gbk";
}
protected String getJsonData(District district) {
if (district == null) {
district = new District();
}
StringBuilder builder = new StringBuilder();
builder.append("{");
builder.append("\"zipcode\":\"" + handleNull(district.getZipcode()) + "\",");
builder.append("\"province\":\"" + handleNull(district.getProvince()) + "\",");
builder.append("\"city\":\"" + handleNull(district.getCity()) + "\"");
builder.append("}");
return builder.toString();
}
protected String handleNull(String str) {
if (str == null) {
return "";
}
return str;
}
}
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