最近在做调用rest api的集成客户端，将api返回的JSON对象Mapping到指定的Model。用了个Mapping及java反射调用方法。对java反射和rest做了些了解。
api返回JSON数据：
定义mapping时取JSON数据的类型或者叫方式
下面这个表是JSON数据的字段和Model字段Mapping转换，其中field_type为8是需要调用方法处理后才能得到Model中相要的数据。
主要的解析都在下的DSIMPL类中
1 package com.ebao.eclaim.policy.mapping.ds; 2 3 import java.lang.reflect.Method; 4 import java.util.ArrayList; 5 import java.util.List; 6 7 import net.sf.json.JSONArray; 8 import net.sf.json.JSONObject; 9 10 import com.ebao.eclaim.common.bo.TClmPolicyMapping; 11 import com.ebao.eclaim.common.util.ClaimCst; 12 import com.ebao.eclaim.common.util.InsuredCst; 13 import com.ebao.eclaim.integration.policy.mapping.PolicyMappingCst; 14 import com.ebao.eclaim.integration.policy.mapping.PolicyMappingUtils; 15 import com.ebao.eclaim.policy.mapping.dao.TClmPolicyMappingDao; 16 import com.ebao.gs.pol.endo.ds.ws.copypolicy.GCAgentSOABO; 17 import com.ebao.gs.pol.endo.ds.ws.copypolicy.GCInsuredPersonSOABO; 18 import com.ebao.gs.pol.endo.ds.ws.copypolicy.GCInsuredPlanSOABO; 19 import com.ebao.gs.pol.endo.ds.ws.copypolicy.GCPolicyCoverSOAModel; 20 import com.ebao.gs.pol.endo.ds.ws.copypolicy.GCPolicyCtSOABO; 21 import com.ebao.gs.pol.endo.ds.ws.copypolicy.GCPolicyCtSOAModel; 22 import com.ebao.gs.pol.endo.ds.ws.copypolicy.GCPolicyHolderSOABO; 23 import com.ebao.gs.pol.endo.ds.ws.copypolicy.GCSInsuredSOABO; 24 import com.ebao.gs.pol.endo.ds.ws.copypolicy.GCSPolicySOABO; 25 import com.ebao.gs.pol.endo.ds.ws.copypolicy.GCSVehicleInsuredSOABO; 26 import com.ebao.gs.pol.endo.ds.ws.copypolicy.GSDriverSOABO; 27 28 /** 29 * 2015-10-14 30 * @author fengying.ye 31 * 32 */ 33 public class PolicyMappingDSImpl implements PolicyMappingDS { 34 TClmPolicyMappingDao mappingDao; 35 public void forTest(){ 36 37 } 38 public GCSPolicySOABO mappingPolicy() throws Exception{ 39 JSONObject policy =JSONObject.fromObject("{PolicyNo:20000011}"); 40 GCSPolicySOABO gcsPolicySoabo = new GCSPolicySOABO(); 41 List<TClmPolicyMapping> policyFields = mappingDao.getFieldList(PolicyMappingCst.MODEL_POLICY, null); 42 for(TClmPolicyMapping field : policyFields){ 43 Object value = this.getFieldValue(policy, field); 44 if(value != null){ 45 this.setPropertyValue(gcsPolicySoabo, field.getClaimField(), value); 46 } 47 } 48 49 handleAgent(gcsPolicySoabo,policy.getLong(PolicyMappingCst.NODE_AGENT_ID)); 50 handleCustomerList(gcsPolicySoabo,policy.getJSONArray(PolicyMappingCst.NODE_POLICY_CUSTOMER_LIST)); 51 handlePolicyLobList(gcsPolicySoabo,policy.getJSONArray(PolicyMappingCst.NODE_POLICY_LOB_LIST)); 52 53 return gcsPolicySoabo; 54 } 55 private void handlePolicyLobList(GCSPolicySOABO gcsPolicySoabo,JSONArray policyLobList) throws Exception{ 56 for(int i=0;i<policyLobList.size();i++){ 57 JSONObject policyLob = policyLobList.getJSONObject(i); 58 long productId = policyLob.getLong(PolicyMappingCst.NODE_PRODUCT_ID); 59 60 List<GCSInsuredSOABO> insuredList = new ArrayList<GCSInsuredSOABO>(); 61 JSONArray riskList = policyLob.getJSONArray(PolicyMappingCst.NODE_POLICY_RISK_LIST); 62 for(int j=0;j<riskList.size();j++){ 63 JSONObject risk = riskList.getJSONObject(j); 64 String riskType = risk.getString(PolicyMappingCst.NODE_RISK_TYPE); 65 if(PolicyMappingCst.RISK_TYPE_VEHICLE.equals(riskType)){ 66 handleVehicleInsured(insuredList,risk,policyLob.getJSONArray(PolicyMappingCst.NODE_DRIVER_LIST),productId); 67 } 68 } 69 gcsPolicySoabo.setInsuredSOABOList(insuredList); 70 } 71 } 72 private void handleVehicleInsured(List<GCSInsuredSOABO> insuredList,JSONObject risk,JSONArray driverList,long productId) throws Exception{ 73 GCSInsuredSOABO insured = new GCSInsuredSOABO(); 74 List<TClmPolicyMapping> insuredFields = mappingDao.getFieldList(PolicyMappingCst.MODEL_INSURED, productId); 75 for(TClmPolicyMapping field : insuredFields){ 76 Object value = this.getFieldValue(risk, field); 77 if(value != null){ 78 this.setPropertyValue(insured, field.getClaimField(), value); 79 } 80 } 81 insured.setInsuredCategory(InsuredCst.VEHICLE_INSURED); 82 handlePlanList(insured,risk); 83 handleVehicle(insured,risk,driverList); 84 handleCoverage(insured,risk.getJSONArray(PolicyMappingCst.NODE_POLICY_COVERAGE_LIST)); 85 } 86 87 private void handleCoverage(GCSInsuredSOABO insured,JSONArray ctList) throws Exception{ 88 List<GCPolicyCtSOAModel> ctModels = new ArrayList<GCPolicyCtSOAModel>(); 89 List<TClmPolicyMapping> ctFields = mappingDao.getFieldList(PolicyMappingCst.MODEL_CT, null); 90 for(int i=0;i<ctList.size();i++){ 91 JSONObject jCt = ctList.getJSONObject(i); 92 GCPolicyCtSOAModel ctModel = new GCPolicyCtSOAModel(); 93 GCPolicyCtSOABO ct = new GCPolicyCtSOABO(); 94 for(TClmPolicyMapping field : ctFields){ 95 Object value = this.getFieldValue(jCt, field); 96 if(value != null){ 97 this.setPropertyValue(ct, field.getClaimField(), value); 98 } 99 } 100 /*other info about CT will be got form GC product matrix. 101 * CT name 102 * GS coverage code 103 */ 104 ctModel.setGcPolicyCtBO(ct); 105 //current product have no benefit, so put empty benefit list in CT model. 106 ctModel.setGcPolicyCoverModelList(new ArrayList<GCPolicyCoverSOAModel>()); 107 ctModels.add(ctModel); 108 } 109 insured.setGcPolicyCtModelList(ctModels); 110 } 111 private void handleVehicle(GCSInsuredSOABO insured,JSONObject risk,JSONArray driverList) throws Exception{ 112 GCSVehicleInsuredSOABO vehicle = new GCSVehicleInsuredSOABO(); 113 List<TClmPolicyMapping> insuredFields = mappingDao.getFieldList(PolicyMappingCst.MODEL_VEHICLE, null); 114 for(TClmPolicyMapping field : insuredFields){ 115 Object value = this.getFieldValue(risk, field); 116 if(value != null){ 117 this.setPropertyValue(vehicle, field.getClaimField(), value); 118 } 119 } 120 handleDriverList(vehicle,driverList); 121 insured.setGcsvehicleInsuredSOABO(vehicle); 122 } 123 private void handleDriverList(GCSVehicleInsuredSOABO vehicle , JSONArray driverList) throws Exception{ 124 List<GSDriverSOABO> dirverList = new ArrayList<GSDriverSOABO>(); 125 List<TClmPolicyMapping> insuredFields = mappingDao.getFieldList(PolicyMappingCst.MODEL_DRIVER, null); 126 for(int i=0;i<driverList.size();i++){ 127 JSONObject jDriver = driverList.getJSONObject(i); 128 GSDriverSOABO driver = new GSDriverSOABO(); 129 for(TClmPolicyMapping field : insuredFields){ 130 Object value = this.getFieldValue(jDriver, field); 131 if(value != null){ 132 this.setPropertyValue(driver, field.getClaimField(), value); 133 } 134 } 135 dirverList.add(driver); 136 } 137 vehicle.setDriverList(dirverList); 138 } 139 private void handlePlanList(GCSInsuredSOABO insured,JSONObject risk){ 140 List<GCInsuredPlanSOABO> planList = new ArrayList<GCInsuredPlanSOABO>(); 141 GCInsuredPlanSOABO plan = new GCInsuredPlanSOABO(); 142 plan.setPlanCode(risk.getString(PolicyMappingCst.NODE_PLAN_CODE)); 143 insured.setInsuredPlanList(planList); 144 } 145 146 private void handleCustomerList(GCSPolicySOABO gcsPolicySoabo,JSONArray customerList) throws Exception{ 147 List<GCInsuredPersonSOABO> insuredList = new ArrayList<GCInsuredPersonSOABO>(); 148 GCPolicyHolderSOABO policyHolder = new GCPolicyHolderSOABO(); 149 List<TClmPolicyMapping> customerFields = mappingDao.getFieldList(PolicyMappingCst.MODEL_CUSTOMER, null); 150 for(int i=0;i<customerList.size();i++){ 151 JSONObject customer = customerList.getJSONObject(i); 152 if(ClaimCst.BASE_YES.equals(customer.getString(PolicyMappingCst.NODE_IS_INSURED))){ 153 handleInsuredPerson(insuredList,customer.getJSONObject(PolicyMappingCst.NODE_CUSTOMER),customerFields); 154 }else if(ClaimCst.BASE_YES.equals(customer.getString(PolicyMappingCst.NODE_IS_POLICYHOLDER))){ 155 handlePolicyHolder(policyHolder,customer.getJSONObject(PolicyMappingCst.NODE_CUSTOMER),customerFields); 156 } 157 } 158 gcsPolicySoabo.setPolicyHolder(policyHolder); 159 gcsPolicySoabo.setPolicyInsuredPersons(insuredList); 160 } 161 private void handleInsuredPerson(List<GCInsuredPersonSOABO> insuredList, JSONObject insuredPerson, List<TClmPolicyMapping> customerFields) throws Exception{ 162 GCInsuredPersonSOABO insured = new GCInsuredPersonSOABO(); 163 for(TClmPolicyMapping field : customerFields){ 164 Object value = this.getFieldValue(insuredPerson, field); 165 if(value != null){ 166 this.setPropertyValue(insured, field.getClaimField(), value); 167 } 168 } 169 insuredList.add(insured); 170 } 171 private void handlePolicyHolder(GCPolicyHolderSOABO policyHolder, JSONObject holder, List<TClmPolicyMapping> customerFields) throws Exception{ 172 for(TClmPolicyMapping field : customerFields){ 173 Object value = this.getFieldValue(holder, field); 174 if(value != null){ 175 this.setPropertyValue(policyHolder, field.getClaimField(), value); 176 } 177 } 178 } 179 180 private void handleAgent(GCSPolicySOABO gcsPolicySoabo, Long agentId){ 181 GCAgentSOABO agent = new GCAgentSOABO(); 182 //invoke SC api 183 184 gcsPolicySoabo.setAgent(agent); 185 } 186 187 private Object getFieldValue(JSONObject jsonObj,TClmPolicyMapping mapping) throws Exception{ 188 String fieldType = mapping.getFieldType(); 189 String policyField = mapping.getPolicyField(); 190 if(PolicyMappingCst.FIELD_TYPE_STRING.equals(fieldType)){ 191 return jsonObj.getString(policyField); 192 }else if(PolicyMappingCst.FIELD_TYPE_LONG.equals(fieldType)){ 193 return jsonObj.getLong(policyField); 194 }else if(PolicyMappingCst.FIELD_TYPE_DOUBLE.equals(fieldType)){ 195 return jsonObj.getDouble(policyField); 196 }else if(PolicyMappingCst.FIELD_TYPE_INT.equals(fieldType)){ 197 return jsonObj.getInt(policyField); 198 }else if(PolicyMappingCst.FIELD_TYPE_BOOLEAN.equals(fieldType)){ 199 return jsonObj.getBoolean(policyField); 200 }else if(PolicyMappingCst.FIELD_TYPE_METHOD.equals(fieldType)){ 201 return this.invokeUtilsMethod(mapping.getMethodName(), jsonObj.getString(policyField)); 202 } 203 return null; 204 } 205 public void setPropertyValue(Object instance, String fieldName, Object fieldValue) throws Exception{ 206 Class instanceClass = instance.getClass(); 207 Method method = instanceClass.getDeclaredMethod("set"+fieldName, fieldValue.getClass()); 208 method.invoke(instance, fieldValue); 209 } 210 public Object invokeUtilsMethod(String methodName, Object... paras) 211 throws Exception { 212 Class[] classArray = new Class[paras.length]; 213 for(int i=0;i<paras.length;i++){ 214 classArray[i] = paras[i].getClass(); 215 } 216 PolicyMappingUtils util =new PolicyMappingUtils(); 217 Method method = util.getClass().getDeclaredMethod(methodName, classArray); 218 return method.invoke(util, paras); 219 } 220 public TClmPolicyMappingDao getMappingDao() { 221 return mappingDao; 222 } 223 public void setMappingDao(TClmPolicyMappingDao mappingDao) { 224 this.mappingDao = mappingDao; 225 } 226 }
1 package com.ebao.eclaim.integration.policy.mapping; 2 /** 3 * 2015-10-14 4 * @author fengying.ye 5 * 6 */ 7 public class PolicyMappingCst { 8 //T_CLM_POLICY_MAPPING_FIELD_TYPE 9 public static final String FIELD_TYPE_INT = "1"; 10 public static final String FIELD_TYPE_DOUBLE = "2"; 11 public static final String FIELD_TYPE_LONG = "3"; 12 public static final String FIELD_TYPE_STRING = "4"; 13 public static final String FIELD_TYPE_BOOLEAN = "5"; 14 public static final String FIELD_TYPE_ARRAY = "6"; 15 public static final String FIELD_TYPE_OBJECT = "7"; 16 public static final String FIELD_TYPE_METHOD = "8"; 17 18 public static final String MODEL_POLICY = "GCSPolicySOABO"; 19 public static final String MODEL_CUSTOMER = "GCPolicyHolderSOABO"; 20 public static final String MODEL_INSURED = "GCPolicyHolderSOABO"; 21 public static final String MODEL_VEHICLE = "GCSVehicleInsuredSOABO"; 22 public static final String MODEL_DRIVER = "GSDriverSOABO"; 23 public static final String MODEL_CT = "GCPolicyCtSOABO"; 24 25 public static final String NODE_AGENT_ID = "AgentId"; 26 public static final String NODE_POLICY_CUSTOMER_LIST = "PolicyCustomerList"; 27 public static final String NODE_IS_INSURED = "IsInsured"; 28 public static final String NODE_IS_POLICYHOLDER = "IsPolicyHolder"; 29 public static final String NODE_CUSTOMER = "Customer"; 30 31 public static final String NODE_POLICY_LOB_LIST = "PolicyLobList"; 32 public static final String NODE_PRODUCT_ID = "ProductId"; 33 public static final String NODE_DRIVER_LIST = "DriverList"; 34 public static final String NODE_POLICY_RISK_LIST = "PolicyRiskList"; 35 public static final String NODE_RISK_TYPE = "@type"; 36 public static final String RISK_TYPE_VEHICLE = "PolicyRisk-Vehicle"; 37 public static final String NODE_PLAN_CODE = "PlanCode"; 38 public static final String NODE_POLICY_COVERAGE_LIST = "PolicyCoverageList"; 39 }
1 package com.ebao.eclaim.integration.policy.mapping; 2 3 import java.math.BigDecimal; 4 import java.text.SimpleDateFormat; 5 import java.util.Date; 6 7 import com.ebao.gs.pub.util.StringUtils; 8 9 public class PolicyMappingUtils { 10 11 public Date formateDate(String dataStr) throws Exception{ 12 if(StringUtils.isNullOrEmpty(dataStr)) return null; 13 SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); 14 return sdf.parse(dataStr.replace("T", " ")); 15 } 16 17 public BigDecimal stringToBigdecimal(String dataStr) throws Exception{ 18 if(StringUtils.isNullOrEmpty(dataStr)) return null; 19 return new BigDecimal(dataStr); 20 } 21 public String getInsuredExtContent(String content){ 22 return "insuredId="+content+";"; 23 } 24 }
Junit测试例子
1 package com.ebao.eclaim.policy.mapping.ds; 2 3 import static org.junit.Assert.*; 4 5 import java.util.List; 6 7 import org.junit.Before; 8 import org.junit.Test; 9 10 import com.ebao.eclaim.common.bo.TClmPolicyMapping; 11 import com.ebao.eclaim.integration.policy.mapping.PolicyMappingCst; 12 import com.ebao.eclaim.policy.mapping.dao.hibernate.TClmPolicyMappingDaoHibernate; 13 14 public class PolicyMappingDSImplTest { 15 16 @Before 17 public void setUp() throws Exception { 18 } 19 20 @Test 21 public void testForTest() { 22 TClmPolicyMappingDaoHibernate dh = new TClmPolicyMappingDaoHibernate(); 23 List<TClmPolicyMapping> mappingList = dh.getFieldList(PolicyMappingCst.MODEL_POLICY, null); 24 System.out.println("===========; "+mappingList.size()); 25 assertEquals(true, mappingList.size() > 1); 26 27 28 29 // PolicyMappingDSImpl ds = new PolicyMappingDSImpl(); 30 // JSONObject policy =JSONObject.fromObject("{FinalPremium:998}"); 31 // try { 32 // BigDecimal data = (BigDecimal)ds.invokeUtilsMethod("stringToBigdecimal", policy.getString("FinalPremium")); 33 // System.out.println("==============================: "+data); 34 // assertEquals(new BigDecimal("998"), data); 35 // } catch (Exception e) { 36 // e.printStackTrace(); 37 // } 38 39 // PolicyMappingDSImpl ds = new PolicyMappingDSImpl(); 40 // SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); 41 // try { 42 // Date date = (Date)ds.invokeUtilsMethod("formateDate", "2011-01-13T00:00:00"); 43 // System.out.println("==============================: "+date); 44 // assertEquals(sdf.parse("2011-01-13 00:00:00"), date); 45 // } catch (Exception e) { 46 // e.printStackTrace(); 47 // } 48 49 // PolicyMappingDSImpl ds = new PolicyMappingDSImpl(); 50 // SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); 51 // JSONObject policy =JSONObject.fromObject("{EffectDate:\"2011-01-13T00:00:00\"}"); 52 // GCSPolicySOABO gcsPolicySoabo = new GCSPolicySOABO(); 53 // try { 54 // System.out.println("+++++++++++++++===----------: "+policy.getString("EffectDate").replace("T", " ")); 55 // ds.setPropertyValue(gcsPolicySoabo, "EffectDate", sdf.parse(policy.getString("EffectDate").replace("T", " "))); 56 // assertEquals(sdf.parse("2011-01-13 00:00:00"), gcsPolicySoabo.getEffectDate()); 57 // } catch (Exception e) { 58 // e.printStackTrace(); 59 // } 60 61 62 // JSONObject policy =JSONObject.fromObject("{PolicyNo:20000011}"); 63 // GCSPolicySOABO gcsPolicySoabo = new GCSPolicySOABO(); 64 // PolicyMappingDSImpl ds = new PolicyMappingDSImpl(); 65 // try { 66 // ds.setPropertyValue(gcsPolicySoabo, "PolicyNo", policy.getString("PolicyNo")); 67 // assertEquals("20000011", gcsPolicySoabo.getPolicyNo()); 68 // } catch (Exception e) { 69 // e.printStackTrace(); 70 // } 71 } 72 73 }
